weird cursor on Linux

[griffi-gh]

Your system information

• Steam client version (build number or date): 1731433018
• Distribution (e.g. Ubuntu): NixOS (nixos-unstable)
• Opted into Steam client beta?: No
• Have you checked for system updates?: Yes
• Steam Logs: steam-logs.tar.gz
• GPU: AMD

Please describe your issue in as much detail as possible:

Steam does not use system cursor (except pointer in non-Web ui parts only) and instead falls back onto some sort of default one.

Steps for reproducing this issue:

1. Open steam
2. Hover either over any webui part, any part of the ui that changes the cursor or the steam overlay

Non-webui parts of the UI still display the correct cursor:

I'm using breeze_cursors on KDE Plasma 6 (Wayland)