Also launchers vary wildly in quality, e.g., Steam and Battle.net have good ones but you get clunkers like GOG's Galaxy (thankfully still optional, I think?) and I haven't really heard Epic's to be especially great either. Steam does have the Non Steam Game feature but I'm not sure how well/if that really works with games that come from different stores as opposed to ones (like the VNs I bought from Jast) that are just independently installed apps.