@srayns: Are you using a specific app or feature when the issue occurs, or is it random? To troubleshoot the situation, please head to Settings > Device care > Auto optimisation > Auto restart, and make sure that 'Restart when needed' and ' Restart on schedule' are both toggled off.
If they are, then please try restarting your phone in Safe Mode, as this will disable all third party apps, and help to determine 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 the restarts/power issues no longer occur, then please restart your S23 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.
If the issue persists in Safe Mode, and if you have submitted an Error Report via the Samsung Members app, then please keep an eye out for some feedback from our team of experts. The response won't be immediate, as the team work on a queue basis, but I can assure you that they will get back to you as soon as possible.
