Flatpak app not working very well on Arch/CachyOS

[theoneand33]

Please confirm the following.

• I checked the existing issues for duplicate problems
• I have tried resolving the issue using the support portal
• I have ensured my Modrinth App installation is up to date

What version of the Modrinth App are you using?

0.9.2

What operating systems are you seeing the problem on?

Linux

Describe the bug

Every button is square and all the UI elements are small, and the settings doesn't work at all when I open setting it just shows the sections but not any of the settings

Screencast_20250119_153124.webm

Steps to reproduce

1. On Arch Linux/CachyOS install flatpak
2. install the Flatpak version of Modrinth
3. open Modrinth

Expected behavior

Modrinth to look normal

Additional context

The only other way to get Modrinth on Arch Linux is with the AppImage, which also doesn't work #3165