Gotta say, as someone without a dog in this particular fight, the extreme emotion around this issue makes me think that Steam has gotten way too influential and probably should be taken down a peg or two.
I mean the way people are acting like having to use a different (free) launcher is tantamount to having their games "taken away" is pretty crazy. It shows a cult-like attachment mentality to a service that's unprecedented.
Case in point being the recent controversy over Shenmue3 where people are literally demanding refunds on a game they backed years in the past. I mean, in all fairness I doubt it would have crossed the developers' minds that the choice of launcher would be such a deal-breaker for some people. Surely they'd have been thinking, "hey, they really want to play our game," not "they'll only want to play our game if its on Steam, that's what really matters to our backers".
To be fair, I get that Steam is the better service, but it still seems frankly, batshit crazy to react so strongly. It also makes me chuckle in that I guess even Steam themselves didn't know they were so idolized, because if they did they'd never have embarked on the misbegotten Steam Machines initiative, because it seems to me that to at least some people any gaming PC is a Steam Machine by default, because they won't accept any substitute!