As someone who keeps the battle.net launcher around for StarCraft 1 & 2, I’ve seen my fair share of issues with Lutris. For the longest time I was able to run the StarCraft games and Overwatch without problems. Over the last few years though, I’ve encountered random issues where I can’t get it running again.
Rather than keep messing with Lutris, on my current install (Bazzite), I installed the Heroic launcher and did a manual install for battle.net. You can choose multiple wine versions or even Proton if you prefer. I have not had any issues with either the launcher or StarCraft games since. Good chance it may allow you to run WoW too.
Good luck!