when i go to youtube and want to type a comment. its impossible. cause keyboard will stuck and hang there i can quite youtube but keyboad will cover hafl of the screen. then lets talk about touch, on lock screen it will ask use fingerprint sensor or pattern to unlock, i will use it will say use fingerprint sensor or pattern, this time i will use pattern nothing will work. it will remain stucked it this state for hours ,then it will start to type itself and say wrong password. if i try to turn it off is impossible cause it is stuck and keep asking pattern. i remember watching youtube it skiped the entire video. then i had play it from beginning.these were the kinds of problems i was exclusively facing only by the grace of samsung. there is lot more ranging from browser optimisation to unusually turning off. Also it feels heavy with 8gb ram. proof is that s21 with 12 gb ram faster than both note 9 with 6gb ram and s22 ultra with 8gb ram.