Numerous players report a CSGO Crash after alt-tabbing or altering resolutions
https://crash-gamblinguoln490.birchreport.com/posts/the-12-worst-types-of-users-you-follow-on-twitter
Lots of gamers report a CSGO Crash after alt-tabbing or changing resolutions. Repairs include setting fullscreen mode regularly, changing resolution back to native, and upgrading GPU drivers to reduce stability problems.