diff --git a/grade/report/grader/classes/privacy/provider.php b/grade/report/grader/classes/privacy/provider.php
index 167de2d2efd..f7212f79476 100644
--- a/grade/report/grader/classes/privacy/provider.php
+++ b/grade/report/grader/classes/privacy/provider.php
@@ -87,7 +87,7 @@ class provider implements
      * @param   int         $userid The userid of the user whose data is to be exported.
      */
     public static function export_user_preferences(int $userid) {
-        $preferences = get_user_preferences();
+        $preferences = get_user_preferences(null, null, $userid);
         foreach ($preferences as $name => $value) {
             $prefname = null;
             $prefdescription = null;
diff --git a/grade/report/grader/tests/privacy_test.php b/grade/report/grader/tests/privacy_test.php
index 5c8b7a5ba55..80ffaaea69b 100644
--- a/grade/report/grader/tests/privacy_test.php
+++ b/grade/report/grader/tests/privacy_test.php
@@ -63,14 +63,18 @@ class gradereport_grader_privacy_testcase extends \core_privacy\tests\provider_t
      * These preferences can be set on each course, but the value is shared in the whole site.
      */
     public function test_export_user_preferences_single() {
-        // Add some user preferences.
+        // Create test user, add some preferences.
         $user = $this->getDataGenerator()->create_user();
         $this->setUser($user);
+
         set_user_preference('grade_report_showcalculations', 1, $user);
         set_user_preference('grade_report_meanselection', GRADE_REPORT_MEAN_GRADED, $user);
         set_user_preference('grade_report_studentsperpage', 50, $user);
 
-        // Validate exported data.
+        // Switch to admin user (so we can validate preferences of our test user are still exported).
+        $this->setAdminUser();
+
+        // Validate exported data for our test user.
         provider::export_user_preferences($user->id);
         $context = context_user::instance($user->id);
         $writer = writer::with_context($context);
diff --git a/lib/editor/classes/privacy/provider.php b/lib/editor/classes/privacy/provider.php
index 9d807a6dbcc..f044192e148 100644
--- a/lib/editor/classes/privacy/provider.php
+++ b/lib/editor/classes/privacy/provider.php
@@ -61,7 +61,7 @@ class provider implements
      * @param   int         $userid The userid of the user whose data is to be exported.
      */
     public static function export_user_preferences(int $userid) {
-        $preference = get_user_preferences('htmleditor');
+        $preference = get_user_preferences('htmleditor', null, $userid);
         if (!empty($preference)) {
             $desc = get_string('privacy:preference:htmleditor', 'core_editor',
                     get_string('pluginname', "editor_{$preference}"));
diff --git a/lib/editor/tests/privacy_provider_test.php b/lib/editor/tests/privacy_provider_test.php
index 6d1dcf912c8..07d4a53212f 100644
--- a/lib/editor/tests/privacy_provider_test.php
+++ b/lib/editor/tests/privacy_provider_test.php
@@ -53,14 +53,19 @@ class core_editor_privacy_provider_testcase extends \core_privacy\tests\provider
      * When preference exists but is empty, there should be no export.
      */
     public function test_empty_preference() {
-        global $USER;
-
         $this->resetAfterTest();
+
+        // Create test user, add some preferences.
+        $user = $this->getDataGenerator()->create_user();
+        $this->setUser($user);
+
+        set_user_preference('htmleditor', '', $user);
+
+        // Switch to admin user (so we can validate preferences of the correct user are being exported).
         $this->setAdminUser();
 
-        set_user_preference('htmleditor', '');
-
-        provider::export_user_preferences($USER->id);
+        // Export test users preferences.
+        provider::export_user_preferences($user->id);
         $this->assertFalse(writer::with_context(\context_system::instance())->has_any_data());
     }
 
@@ -68,13 +73,19 @@ class core_editor_privacy_provider_testcase extends \core_privacy\tests\provider
      * When an editor is set, the name of that editor will be reported.
      */
     public function test_editor_atto() {
-        global $USER;
         $this->resetAfterTest();
-        $this->setAdminUser();
+
+        // Create test user, add some preferences.
+        $user = $this->getDataGenerator()->create_user();
+        $this->setUser($user);
 
         set_user_preference('htmleditor', 'atto');
 
-        provider::export_user_preferences($USER->id);
+        // Switch to admin user (so we can validate preferences of the correct user are being exported).
+        $this->setAdminUser();
+
+        // Export test users preferences.
+        provider::export_user_preferences($user->id);
         $this->assertTrue(writer::with_context(\context_system::instance())->has_any_data());
 
         $prefs = writer::with_context(\context_system::instance())->get_user_preferences('core_editor');
diff --git a/lib/form/classes/privacy/provider.php b/lib/form/classes/privacy/provider.php
index 991d5062c23..974be8c6532 100644
--- a/lib/form/classes/privacy/provider.php
+++ b/lib/form/classes/privacy/provider.php
@@ -63,9 +63,7 @@ class provider implements
      * @param int $userid The ID of the user whose data is to be exported.
      */
     public static function export_user_preferences(int $userid) {
-
-        $preference = get_user_preferences('filemanager_recentviewmode');
-
+        $preference = get_user_preferences('filemanager_recentviewmode', null, $userid);
         if ($preference !== null) {
             switch ($preference) {
                 case 1:
diff --git a/lib/form/tests/privacy_provider_test.php b/lib/form/tests/privacy_provider_test.php
index bdf3dabf8a7..42f389f0b29 100644
--- a/lib/form/tests/privacy_provider_test.php
+++ b/lib/form/tests/privacy_provider_test.php
@@ -23,6 +23,7 @@
  * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
+use core_form\privacy\provider;
 use core_privacy\local\request\writer;
 
 defined('MOODLE_INTERNAL') || die();
@@ -43,7 +44,7 @@ class core_form_privacy_provider_testcase extends \core_privacy\tests\provider_t
         $this->resetAfterTest();
         $this->setAdminUser();
 
-        \core_form\privacy\provider::export_user_preferences($USER->id);
+        provider::export_user_preferences($USER->id);
         $this->assertFalse(writer::with_context(\context_system::instance())->has_any_data());
     }
 
@@ -55,13 +56,19 @@ class core_form_privacy_provider_testcase extends \core_privacy\tests\provider_t
      * @param string $desc Text describing the preference
      */
     public function test_filemanager_recentviewmode(string $val, string $desc) {
-        global $USER;
         $this->resetAfterTest();
+
+        // Create test user, add some preferences.
+        $user = $this->getDataGenerator()->create_user();
+        $this->setUser($user);
+
+        set_user_preference('filemanager_recentviewmode', $val, $user);
+
+        // Switch to admin user (so we can validate preferences of the correct user are being exported).
         $this->setAdminUser();
 
-        set_user_preference('filemanager_recentviewmode', $val);
-
-        core_form\privacy\provider::export_user_preferences($USER->id);
+        // Export test users preferences.
+        provider::export_user_preferences($user->id);
         $this->assertTrue(writer::with_context(\context_system::instance())->has_any_data());
 
         $prefs = writer::with_context(\context_system::instance())->get_user_preferences('core_form');
diff --git a/mod/quiz/report/overview/classes/privacy/provider.php b/mod/quiz/report/overview/classes/privacy/provider.php
index 0f9fee4eab4..2e01395137d 100644
--- a/mod/quiz/report/overview/classes/privacy/provider.php
+++ b/mod/quiz/report/overview/classes/privacy/provider.php
@@ -59,7 +59,7 @@ class provider implements
      * @param   int         $userid The userid of the user whose data is to be exported.
      */
     public static function export_user_preferences(int $userid) {
-        $preference = get_user_preferences('quiz_overview_slotmarks', null);
+        $preference = get_user_preferences('quiz_overview_slotmarks', null, $userid);
         if (null !== $preference) {
             if (empty($preference)) {
                 $description = get_string('privacy:preference:slotmarks:no', 'quiz_overview');
diff --git a/mod/quiz/report/overview/tests/privacy_provider_test.php b/mod/quiz/report/overview/tests/privacy_provider_test.php
index de59fcaa31f..299eb49b52a 100644
--- a/mod/quiz/report/overview/tests/privacy_provider_test.php
+++ b/mod/quiz/report/overview/tests/privacy_provider_test.php
@@ -55,14 +55,19 @@ class quiz_overview_privacy_provider_testcase extends \core_privacy\tests\provid
      * Preference does exist.
      */
     public function test_preference_yes() {
-        global $USER;
-
         $this->resetAfterTest();
+
+        // Create test user, add some preferences.
+        $user = $this->getDataGenerator()->create_user();
+        $this->setUser($user);
+
+        set_user_preference('quiz_overview_slotmarks', 1, $user);
+
+        // Switch to admin user (so we can validate preferences of the correct user are being exported).
         $this->setAdminUser();
 
-        set_user_preference('quiz_overview_slotmarks', 1);
-
-        provider::export_user_preferences($USER->id);
+        // Export test users preferences.
+        provider::export_user_preferences($user->id);
 
         $writer = writer::with_context(\context_system::instance());
         $this->assertTrue($writer->has_any_data());
@@ -78,14 +83,19 @@ class quiz_overview_privacy_provider_testcase extends \core_privacy\tests\provid
      * Preference does exist and is no.
      */
     public function test_preference_no() {
-        global $USER;
-
         $this->resetAfterTest();
-        $this->setAdminUser();
+
+        // Create test user, add some preferences.
+        $user = $this->getDataGenerator()->create_user();
+        $this->setUser($user);
 
         set_user_preference('quiz_overview_slotmarks', 0);
 
-        provider::export_user_preferences($USER->id);
+        // Switch to admin user (so we can validate preferences of the correct user are being exported).
+        $this->setAdminUser();
+
+        // Export test users preferences.
+        provider::export_user_preferences($user->id);
 
         $writer = writer::with_context(\context_system::instance());
         $this->assertTrue($writer->has_any_data());