I have a 2015 MacBook Pro, with the latest update MacOS Monterey 12.6.1.
Every time I open up Hearthstone, I am having the same issue. The tavern doors come up, and that’s as far as it gets. I have to force quit the game because nothing I do gets it going, or closes it without that measure.
I have deleted the game and re-downloaded as well, it doesn’t make a difference.