Steam Notifications change current window and make games flicker

[Chocolate-Banana]

Is there an existing issue for this?

• I have searched the existing issues

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

• The issue occurs on upstream gamescope without any modifications

Current Behavior

When utilising gamescope on games, whenever i get a steam notification, the game window appears to change to the steam notification making the game flicker to a black screen and back very quickly. it will then flicker again once the notification has disappeared.

Steps To Reproduce

1. Launch Dead by Daylight with command: gamescope -W 3840 -H 1600 -r 160 --backend sdl --force-grab-cursor -f --
2. Get a friend to message me
3. Issue happens

Hardware information

- Distro: CachyOS Rolling
- CPU: AMD Ryzen 9800X3D
- GPU: AMD Radeon 7900XTX
- Driver Version: Mesa 25.1.5

Software information

- Desktop environment: Hyperland 0.49.0
- Session type: Wayland
- Gamescope version: 3.16.9-2
- Gamescope launch command(s): gamescope -W 3840 -H 1600 -r 160 --backend sdl --force-grab-cursor -f --

Which gamescope backends have the issue you are reporting?

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

Logging, screenshots, or anything else

No response