Switched from Nvidia to AMD, rebased - black screen on games

Hi, I've recently switched from my 3070Ti to a 9070XT. Originally I was using Bazzite KDE Nvidia "version".
I rebased to KDE AMD stable, but was having some graphical issue. I then rebased Bazzite to the AMD testing branch, now I can boot to the KDE environment.

I have a new problem:
  • I boot a game, it runs but I'm left with a black screen
  • if I alt-tab or press Win, I can see the game in the background running as expected
  • if I switch back to the game, it goes back to the black screen
Is there something wrong or something missing from rebasing? I'd like to avoid reinstalling everything as downloading 200gb+ of games is a huge pain in the ass with a slow connection.
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