If steam goes down you can play offline. They have a portable game console that doesn't need to be connected to play. They have big warnings on the store page of games that require online drm.
They don’t let you resell games, if you die your library is gone, if said steamdeck (or steam machine) breaks those games are gone, the list goes on. It is a digital store with the exact same limitations of any video game console full of digital purchases.
I use Steam but I also know I’m vulnerable to a rug pull. We all are. That’s why I’ve been shifting over to GOG and making sure to back up my library in an organized fashion. I wish I had done it sooner, but hey, today’s the best day.
As for warnings, I mean…come on man. That’s like hiding behind ToS. Let’s be realistic here: how many people here (including yourself) see a game they really want, see it has a little DRM note on the uttered store page, then decide never to buy it? Few people let that stop them from getting a game they actually want.
There's a surprising amount of games on my Deck that refuse to run without internet. It's not even marked anywhere which sucks because you find out when you have no connectivity.