https://bugs.winehq.org/show_bug.cgi?id=47265
--- Comment #52 from Sveinar Søpler cybermax@dexter.no --- Oh.. Ofc removing WTF folder would mean resetting all your settings, so unless you start WoW with -d3d11 or similar option, the default WoW setting is to try d3d12 afaik.
And if you do not have vkd3d or an updated version of that, chances are you would crash...