Activision Blizzard is not a good company. They have an abysmal track record for how they treat their employees, history of misogyny and abuse. Since the departure of Blizzard’s founding members, the quality of many of their games took a noise dive.
They got one thing very right though, and that’s account-level, platform independent save system in Diablo 4.
Being able to seamlessly switch between my PC, PS5 and Steam Deck is probably the coolest thing I experienced in gaming in a very long time. While it would be awesome not to have to buy the titles individually on each platform, it’s a huge step in the right direction.
I can only wish more games supported cross-platform saves, because now that I’m used to it, I can really feel the absence of this feature in other titles.
(It would also help a lot with games preservation, if you could easily use old save files on newer platforms and remasters - as long as it’s not all server-bound)
I loved CD Projekt Red for including syncing Witcher 3 saves from GOG/Steam to Switch. I don’t think I’ve seen another Switch game do this.
Hades uses Epic’s EOS suite to do cross-platform between at least Switch and PC (not sure about the other consoles, but I’d be surprised if they weren’t included, too), and I believe cross-store, too, if you for whatever reason own it on both EGS and Steam (again, not 100% sure about that, but I think it’s the case).
The only other one I can think of is Divinity: Original Sin 2. It works in pretty much the same way.