First, my specs:

• AMD Ryzen 5 5600x
• 32 GB DDR4 RAM
• Intel Arc A770 16GB
• Ubuntu 25.04
• 6.14.0-15-generic kernel
• Mesa 25.1-rc3

Let's get one thing out of the way real quick; no, the GPU isn't dying. Oblivion Remastered is the only game this glitches happen in.

I've taken these screenshots in the Imperial City as that's where the artefacting happens most drastically, however it still happened in the starter dungeon/sewers and outside. I know that AMD GPUs had some weird visual bugs, but the ones I'm experiencing are not the same, and I can't seem to find anyone else experiencing these problems (after days of searching. It sometimes seems like I'm the only one with an Intel card in the world).

I've tried running with Proton 9.0-4, ProtonGE 9.27, and the newest Proton 10, but I don't think it's an issue that can be fixed with merely running a different Proton version.

Game compiles shaders upon first launch (I reinstalled a few times) so... it could be an error with how shaders are compiles...? Maybe...?

Either way, I'm at a loss now and need help figuring this out...