There are a few DRM-free Steam games but most devs on Steam enable the DRM. This isn't Steam's fault but Steam is holding the reins of that access. It works great now, so smooth you can't tell there's DRM. But at the end of the day most of my collection is at the whims of Valve.

I'm personally concerned about what happens when Gabe retires or shuffles off this mortal coil, and his replacement comes with a "fresh" revenue idea. He's a one of a kind visionary leader, it's not a sure thing that his successor is the same. I've been baited and switched so many times in the past few decades that it's hard to blindly trust any company for more than the very immediate future.