That's not good @Kimmydaminx
My partner and daughter both use that phone and updated to the Android 11 and Samsung One Ui 3.0 update and don't have these issues !
May I ask what you have tried thus far in the way of troubleshooting ?
Daily Driver > Samsung Galaxy s²² Ultra 256Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help. " This is the way. "