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Ah, I see now, it's that second one that means nothing, the "pacman -Fl steam-native-runtime", but the other log makes sense. I both hope to find the issue and not encounter it again.
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I had made some log of what my system files for Steam are, maybe the original problem was some files for "Steam Runtime Launch Service" getting corrupted, deleted, or moved somehow. See: <http://0x0.st/8-EY.txt>
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You would think reinstalling steam would've fixed it though (which I did multiple times). I'm assuming something else I installed fucked with it, but I apparently haven't installed whatever it is yet
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steam is a bit of a special case. The pacman package is basically only a "starter kit". Once you start that the first time, the actual steam client is downloaded and everything in direct relation to that will land in ~/.local/share/Steam (so in your home directory) , so after this initial start reinstalling the steam package will basically do nothing. If you want to reset the libs steam is using you'd use
steam --reset
or to actually invoke a "proper" reinstall you'd remove the entirety of ~/.local/share/Steam
We sadly didn't get a proton log or (game crash log or so), so it's hard to say what the ultimate cause was, but generally speaking to "reset steam" one of the things above would've sufficed in lieu of a reinstall.
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