Hello!
I have since July when I bought 7900 xtx been having issues with games crashing, and it saying driver timeout/ crash. this mainly being while playing Destiny 2 and new releases.
I found something that worked for me and have not crashed now in 2-3 weeks in anything and it's been super smooth.
1. Open Registry Editor
2. Press CTRL+F and make sure Keys, Values and Data all have a checkmark
3. Search for EnableULPS ( this could take a while to find )
4. Change the Value of EnableUlps and EnableUlps_NA from 1 to 0
5. Happy gaming if this worked for you like it did me!