Alt tab is not working anymore in linux

Issue description

When you alt tab out of the game and return to it the game hangs in a black screen.

It used to work before 0,49

Expected behavior

Go back from alt-tab and game works

Game version

0.4.9

Hey there, I am also playing on Linux.

When switching to 0.4.9 while it was in the experimental branch I had to switch from the default compatibility tool to the Glorious Eggroll version, Proton 7.0-3 to Proton-GE 7-27, and now am on 7-28 with the main branch 0.4.9c game.

As a bit of general advice, when posting issues with gaming on Linux please add relevant information about your system like what compatibility tool, distro, kernel and GPU you're using, like what you'd see in a protondb post.