I’m using macOS Big Sur on Intel. I didn’t launch Hearthstone for 2 months. Recently I tried to launch it and was stuck on a Closed Tavern Door Screen. I’ve updated the game. I tried to scan and repair the game, deleted some cache-like folders in ~/Library and /Users/Shared folders. I tried to uninstall Battle.net, Hearthstone.
Some specifics: Recently I did some space cleaning using CleanMyMac app, possibly deleting some important files that are not restored during reinstallation.
I just answered this on an earlier thread refer to that I’ll try to find the link and post it.