DRM isn't really the story with Valve. Their business model is offer good service. Part of that is not being hostile to users. Users don't want to be spied on and have their data sold, so Valve doesn't do that. People want autonomy over their hardware, so they give them that. It's even in their marketing material for the steam machine. The frame is a computer running arch. If you want to 100% opt out of Steam and write your own driver stack, they're not standing in your way. That is uniquely pro-user and freedom in the tech industry. Also, their open source initiatives with proton and fex should not be discounted.

If there's a morally grey stone to turn over then imo it's the not-gambling-wink-microtransactions and even then it's no more predatory than what is common in the gaming industry.