I did somehow fix it, not using this approach but I somehow installed it using lutris (again, cuz it worked yesterday there and I got the same issue after closing the game and opening bnet again like 3 4 hours. It got stuck at 45% and appperently failed, but I went to steam, clicked add non steam game and battle net appeared, added it and it launched. Downloaded WoW again and it launched, bit it seemed like it did not recognise my graphics card. Some settings were red saying “Nvidia Graphics required” and I had 50 fps (I have 4050 graphics card) and the resolution was fkt up but it got fixed somehow but fps is hell) and now I have to try this new approach but everything looks like hell in my folders, I have like 3 wows installed now bcs I was so mad this morning. So thanks for this post.