https://bugs.winehq.org/show_bug.cgi?id=43518
--- Comment #2 from jdally987@gmail.com --- (In reply to jdally987 from comment #0)
Forgot to add for reproducibility, that I downloaded the legacy OriginThinClient.exe installer from the link; and also didn't bother setting winecfg to Windows XP for these tests. I tried that originally but it didn't make a difference, especially since you HAVE to set it to Windows 7 later, as TF2 will only run on a 64-bit Windows 7 and up system.
Also I'm using the default amdgpu mesa open-source drivers that install with Manjaro. A commenter on the linux_gaming subreddit said this DX11 game should work better with the gl_arb_compatibility in the proprietary AMDGPU-PRO drivers, but those aren't supported by my distro yet.