I only really use Steam myself anymore, now that I’m gaming primarily on my steam deck. That said, I understand that Bottles is the most compatible solution for Battle.net support, so I may add that to my list down the line. I have nothing against Lutris, I used it plenty in the past, I’ve just moved past needing it for the most part.
What it’s looking for is irrelevant, it has to scan everything to be able to look for that.