No Mouse in games when enabling Gamescope

[Terrorwolf01]

Is there an existing issue for this?

• [x] I have searched the existing issues

Are you using any gamescope patches or a forked version of gamescope?

• [x] The issue occurs on upstream gamescope without any modifications

Current Behavior

When starting Games like Helldivers2 with gamescope, I see no Mouse Cursor. It works, but getting the Mouse on the right spot without seeing it is pretty hard.

Steps To Reproduce

1. Launch a Game like Helldivers2 or Hitman WoA with the following Launch Options: PROTON_ENABLE_WAYLAND=1 gamescope -w 3840 -h 2160 -r 144 -f --hdr-enabled -- %command%
2. Observe that you don't have a Mouse ingame.

Hardware information

- Distro: EndeavourOS KDE
- CPU: AMD Ryzen 9 5950X
- GPU: NVIDIA GeForce RTX 4090
- Driver Version: 580.105.08

Software information

- Desktop environment: KDE 6.5.4
- Session type: Wayland
- Gamescope version: version 3.16.18 (gcc 15.2.1)
- Gamescope launch command(s): PROTON_ENABLE_WAYLAND=1 gamescope -w 3840 -h 2160 -r 144 -f --hdr-enabled -- %command%

Which gamescope backends have the issue you are reporting?

• [x] Wayland (default for nested gamescope)
• [ ] DRM (default for embedded gamescope, i.e. gamescope-session)
• [ ] SDL
• [ ] OpenVR

Logging, screenshots, or anything else

No response