Many players report a CSGO Crash after alt-tabbing or altering resolutions
https://blogfreely.net/searynspvu/what-cs2-crash-sites-experts-want-you-to-know
Lots of gamers report a CSGO Crash after alt-tabbing or altering resolutions. Repairs consist of setting fullscreen mode consistently, changing resolution back to native, and updating GPU motorists to minimize stability issues.