Scaling not working on Linux Steam Beta Client

[nebadon2025]

[System]
OS:              Ubuntu 22.10 Kinetic Kudu
Arch:            x86_64
Kernel:          6.1.11-x64v3-xanmod1
Desktop:         KDE
Display Server:  x11

[Graphics]
Vendor:          AMD
OpenGL Renderer: AMD Radeon RX 6800 XT (navi21, LLVM 15.0.6, DRM 3.49, 6.1.11-x64v3-xanmod1)
OpenGL Version:  4.6 (Compatibility Profile) Mesa 23.1.0-devel (git-37b544e 2023-02-18 kinetic-oibaf-ppa)
OpenGL Core:     4.6 (Core Profile) Mesa 23.1.0-devel (git-37b544e 2023-02-18 kinetic-oibaf-ppa)
OpenGL ES:       OpenGL ES 3.2 Mesa 23.1.0-devel (git-37b544e 2023-02-18 kinetic-oibaf-ppa)
Vulkan:          Supported

Steam client application
Built: Feb 17 2023, at 23:57:13
Steam API: v020
Steam package versions: 1676680477

Upgrade to Beta Client and run with "env GDK_SCALE=2" in 3840x2160 desktop resolution.

RESULTS
Beta Viewer > https://i.imgur.com/667gYpl.jpg

EXPECTED
Release viewer > https://i.imgur.com/CAdOQdQ.jpg

[kisak-valve]

Hello @nebadon2025, this issue is already being tracked at #9209. Closing as a duplicate.