Incorrect scaling on Steam Deck screen

[Jacalz]

Checklist

• I have searched the issue tracker for open issues that relate to the same problem, before opening a new one.
• This issue only relates to a single bug. I will open new issues for any other problems.

Describe the bug

Copying over from Jacalz/rymdport#159, Fyne applications are entirely unusable on Steam Deck (maybe even other small screens?). This is really problematic because anyone using a Steam Deck and then installing something like Rymdport or Supersonic on Flathub will be very annoyed because the apps have stopped working.

How to reproduce

1. Start any Fyne application on Steam Deck.
2. Notice that scaling makes it impossible to use the app.

Screenshots

Example code

Use Fyne demo or install Rymdport or Supersonic from Flathub.

Fyne version

v2.4.5

Go compiler version

1.22.3

Operating system and version

SteamOS

Additional Information

See Jacalz/rymdport#159 for more information.

[andydotxyz]

I don't think this can be universally true as I have seen many apps running on the steam deck. Is it related to user configuration or is this a recent problem?