@Brk007: I'm sorry to hear that you have encountered these issues following a recent update. It isn't possible to rollback your software I'm afraid, but let's try to get to the root of the issue, and bring your Galaxy S22 back to it's best.
To begin with, as a basic troubleshooting step, please press the Volume Down and Side buttons together for around 10 seconds until the phone restarts. This will perform a Soft Reset and resolve any temporary software issues that might be a contributing factor. Don't worry, this won't affect your personal data or settings. If the issue persists, try restarting your Phone in Safe mode, as this will disable all third party apps and help to verify if the problem is stemming from an external source.
To enter Safe mode, press and hold the Power button until the 'Power off' prompt appears on the screen then release > Touch and hold Power off until the 'Safe mode' prompt appears then release > To confirm, tap Safe mode.
With Safe mode active, monitor the performance of the device for a few hours, based on the frequency that you encounter the issue. If you find that your call audio and ringtone volume is stable, then please restart your S22 as you would normally and uninstall any apps that you have added to the device since you first encountered the issue. It won't be possible to determine exactly which app is at fault, therefore I recommend approaching this via a process of elimination.
