Hi there 👋
Are you using phone in landscape mode and it happens when its on the landscape mode or even in the portrait mode?
You could reduce animations in settings > accessibility > vision enchantments > reduce animations.
Check if you have multiple app running in the background and exit the one you dont use.
Try wipe cache partition of the phone.
Plug the phone into PC, tv etc via USB.
Turn off your phone
Press and hold power and volume up buttons till samsung logo appears, then quickly release power button and keep holding volume up button till recovery menu appears.
Navigate with volume buttons to the wipe cache partition and press power button to confirm.
When ots done Navigate with volume down button to restart your phone.
You should also report it via Samsung members app.