44.rc: Metro Exodus fullscreen mode slightly misplaced, does not fill screen completly

Affected version

Fedora 38
gnome-shell-44~rc-1.fc38.x86_64
mutter-44~rc-4.fc38.x86_64

Bug summary

Starting Metro Exodus Enhanced Edition in Fullscreen mode no longer fills the complete screen. A line at the top and the right shows parts of the desktop. Switching in and out of Fullscreen mode or putting the game on a separate workspace does not fix the issue.

Tested with different Proton and mesa versions. Tested only on Wayland.

Relevant logs, screenshots, screencasts etc.