Arch.

I just checked and it turns out it's running natively not via proton.

Not sure if any of this will be news to you, but for generally debugging:

If you run `steam` from a command line, and then launch civ 6 (or any game) from steam, it will print any errors to the terminal. Chances are it's some sort of missing dependency.

I was told by someone else that I might need to set launch options to `LD_PRELOAD=/usr/lib/libfreetype.so.6 %command%`, for whatever reason I didn't need to, but you might try that.