Ah launchers, don't you just love them? A reoccuring nuisance for Steam Deck and desktop Linux gaming is that they can and will break and the latest to break (again) is Battle.net. Here's how you can fix it for now.
I tried D4 on its free week, and it’s definitely preferable to play Blizzard games through Steam and not have to fool with the Battle.net launcher. Also getting to take advantage of Steam shader caches is great for performance of course.
I’m so happy I finally ditched Battle.net, since Overwatch is now on Steam. Battle.net through proton and wine often crashed or had other issues.
I tried D4 on its free week, and it’s definitely preferable to play Blizzard games through Steam and not have to fool with the Battle.net launcher. Also getting to take advantage of Steam shader caches is great for performance of course.