It can take a short time for your phone to settle down after an update @Suchy1977
Try turning the phone Off and On to soft reboot it.
Make sure your apps in the Playstore and Galaxy Store are updated.
Put the phone into Safe Mode which disables the downloaded apps and themes etc and then see what happens.
If things resolve in Safe Mode then you'll need come out of Safe Mode to uninstall your downloaded apps one at a time until the issue stops.
You can also try clearing the cache and if necessary data of your apps in Settings, Apps, Choose the App, Storage, Clear Cache and Data.
As mentioned clearing the phones system cache files can help in some instances.
Clear your System File Cache vai the instructions in the Samsung Link. You may need to hook upto a computer or insert your headphones to get to the recovery menu. https://www.samsung.com/uk/support/mobile-devices/how-do-i-clear-the-cache-on-my-device/
Factory reset is a very last resort.
I updated to the September Patch a few days ago which has caused no issues on my phone if that helps.
A Samsung Experience Store / Samsung Service Centre can take a look at your phone.
I wish you all the best with this situation.
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 have no affiliation with Samsung.