Untitled Goose Game got me back into piracy after 15 years of abstinence because of the anti-Steam launch. I would have gladly paid were it on Steam.
It just sets up everything for me so I don't have to mess with lutris, various wine versions and whatnot.
I've found that using the libraries included in steam also removed all manual "fiddling" compared to running it with native arch linux libraries.
I have the same experience with Steam. After not using for a few days, it begins downloading hundreds of megabytes of updates and has to restart itself before you can do anything with it.
I never got a fondness for stream as a result and avoid it whenever possible.
On that note, i was really surprised to find out that epic let's you start plenty of your games without having to open the client. That's a killer feature for me. Family sharing is too.
I don't game very often, but the way Steam "just works" can't be understated enough.
It's not perfect. I've run into weird bugs occasionally, though they were likely the fault of a specific game.
However, it's miles ahead of other game launchers I've dealt with. I'm a casual gamer, so if I end up fighting the game launcher and update mechanism for more than a few minutes, I'm just going to give up and do something else. Steam has come as close as I've seen to streamlining that experience for me.