Samsung Galaxy S21+ 5G
Android 11.0
1 Find "Manage accounts"
Slide two fingers downwards starting from the top of the screen.
Press the settings icon.
Press Accounts and backup.
Press Manage accounts.
2 Turn automatic synchronisation of content on or off
Press the indicator next to "Auto sync data" to turn the function on or off.
Press OK.
3 Return to the home screen
Press the Home key to return to the home screen.