Can we finally please have a proper game client launcher in 2019?

[Kurando]

What Kurando is mentioning is that the "launcher" is part of the game for Diablo, which it's likely not. .

To clarify, that wasn't exactly what I meant but more Diablo (and other Blizzard titles) on console don't require a launcher. Now whether it's built in or not I don't know at all, but definitely one isn't required to act as a medium like what you get with the Battle.net app on PC (or PlayOnline for FFXI). The console system itself does the update/patch checks etc on trying to start games but it's not like a specific app catered for a number of titles.