So the weird thing is that this issue was happening as soon as I opened the Steam client. I wasn’t even trying to launch a game.

But in any case, what I did was I installed the steam-native-runtime package, uninstalled it, and now the regular steam client doesn’t show that error anymore. I’m not quite sure what made it work.

However, it seems like I have a new issue. When I start the client, the Store page is completely black, and stays that way until I click on some other tab, and then I click back to the Store tab, upon which the Store page does load.