Collision 3.9.0 requires Libadwaita 1.6, not sure how it snuck into the testing branch.
I’ll replace collision 3.9.0-1 with 3.8.1-2 here shortly.
That fixed it. Thanks.
I do face the same issue, tried on top of that also X11 vs Wayland, changed kernels etc. Games installed via Lutris or Heroic are not affected. Honestly I don’t have a clue what could have caused this. Steam logs also don’t show anything, neither the Btw, I also pulled the updates of mesa and ostree today. Does anyone have an idea? Thanks in advance! 
inxi -Fxzc0 → System: Kernel: 6.11.2-3-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 14.2. - Pastebin.com
journalctl → hastebin