Vulkan: Opening a 3D project on X11 causes a GPU Reset (AMDGPU)

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Godot version

4.0 alpha 2

System information

Arch Linux, KDE 5.24.1, Mesa 21.3.6, AMD Radeon RX 460 Graphics (POLARIS11, DRM 3.44.0, 5.16.9-zen1-1-zen, LLVM 13.0.1)

Issue description

Godot 4 has been causing this error to appear in dmesg since some time after March 12th 2021 (some time after Godot Wild Jam #31 and commit bf309b8).

[1186.885461] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, but soft recovered

Now, it makes KWin spam notifications about a GPU reset, and flickering the the screen until I turn off compositing. VLC used to do something, so I assumed to was a mesa issue and didn't report it. However, now Godot 4 is the only app I use that causes this. This only happens on X11, no issues on Plasma Wayland. Restarting KWin allows me to turn on compositing again.

Steps to reproduce

Opening a 3D project in the editor or running one from the launcher will cause this.
Edit: It only seems to be a few projects that are causing this and it doesn't happen unless I reboot and go into X11 first, it wouldn't happen when I only logged out of Wayland and logged into X11...

Edit 2: Also, I appears the issue I had a few months ago with the strange colors was a separate issue entirely, which is still reproducible (only once somehow, this is terrifying) and has something to do with a shader I made in the visual shader editor.
Here's the dmesg log from that: dmesg_godot_lockup.txt, although I should probably move that into a new issue?