[2022] Game Unplayable, Crashes Everytime

That's a nasty looking error log. In your clean reinstall attempts, are you 100% sure there were no files or folders left under either the Steam CK3 or Documents CK3 locations, before installing again?

No mods involved?  

If you. don't mind, can you please delete that error log (and debug.log while we're at it), play the game until the problem occurs, then attach here the new copies of those two files? Thanks!  

What if you exit the Steam app entirely, and run ck3.exe manually? Any different?