Similar to Dukhat, I’m good now too.
I changed my wine version in Lutris to ge-proton, launched the launcher, it downloaded the game. I switched back to wine-ge-8-26 and launched WoW.
Unfortunately I uninstalled the game and tried reinstalling initially, so I don’t know if that step is required or if it would have worked without doing that. I would also back up your interface and settings just in case.