Random Lagespikes during gameplay and only fixable by a game restart

[Polyfish0]

Your system information

• System information from steam in a gist:
  If on Linux, please include Steam -> Help -> Steam Runtime Diagnostics in the gist
• Have you checked for system updates?: Yes

Please describe your issue in as much detail as possible:

When I play, everything is fine but at a random point during the game, I get lag spikes until I restart the game.
It does not matter if I play with or without gamescope

and when everything is fine, it looks like this

[kisak-valve]

Hello @Polyfish0, this issue is already being tracked at #2901. Closing as a duplicate.