Hello there,
As the title suggests, the mouse does not move/respond while playing Helldivers 2 through Steam with either Plasma 6.0.0 or 6.0.1 via Wayland. What's interesting is that if I go into the menu, the mouse cursor moves and I can interact with the options.....but the moment I start playing and moving my character, mouse look doesn't work...but mouse buttons do. Apparently, a few others are experiencing the same issue.

https://old.reddit.com/r/linux_gaming/comments/1b89iu8/kde_plasma_6_helldivers_2_broken_mouselook/

https://old.reddit.com/r/linux_gaming/comments/1bahzh0/cant_look_around_in_games_after_recent_kde_plasma/

As those threads suggest, using gamescope or running Plasma via X11 are the only workarounds at the moment. Some have mentioned that other games are affected but Helldivers 2 is the only one that I have encountered with this issue so far. Everything works fine with Plasma 5.27 via Wayland.


STEPS TO REPRODUCE
1. Run KDE Plasma 6.0.0/6.0.1 via Wayland
2. Launch Helldivers 2 
3. Test if mouse look works while moving the playable character.

OBSERVED RESULT
When in-game and controlling the main character, mouse look stops working...but mouse buttons work (almost as if the mouse is stuck).

EXPECTED RESULT
Mouse look should work.

SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 39
KDE Plasma Version: 6.0.1
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
Kernel Version: 6.7.7-200.fc39.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 9 5900HX with Radeon Graphics
Memory: 30.8 GiB of RAM
Graphics Processor: AMD Radeon RX 6800M
Manufacturer: ASUSTeK COMPUTER INC.
Product Name: ROG Strix G513QY
System Version: 1.0

ADDITIONAL INFORMATION
If there's any further data/information I can help with, please let me know.