Could be caused by some 3rd party app that is installed. If you know more or less when it started happening, look for apps or games that were maybe installed recently. Then uninstall one at a time and monitor if the phone still restarts. If that does...
This usually happens when some 3rd party app is installed and showing ad popups. Sometimes it could also be a tab that has not been closed in Google Chrome browser. Check chrome that all tabs are closed, then check any apps or games that are installe...
I just started experiencing this issue a few days ago on my S23. I contacted my mobile service provider about this. I'm not sure if it's due to the one 6.0 update or something else, but they advised to go to settings-> connections -> mobile networks-...
Check on device care -> battery what is draining the battery. Put any non essential apps into deep sleep. On my S23 Ultra I have battery protect on which only charges to 85% and yet I still get a day and half of usage before I need to charge. There m...