See the linked article for a list of the supported games.
Blizzard games are of course included, but we also get:
- Avowed
- Tony Hawk’s Pro Skater 3+4
- DOOM: The Dark Ages
- Sea of Thieves
- Crash Bandicoot™ 4: It’s About Time
If you need help on installing Battle.net, gamingonlinux coincidentally just published an article on getting it installed.
You can also use Non-steam launchers
I got it to work with non-steam launchers for Diablo II: Resurrected