The deck and machine are not going to delete your account if it breaks? Theyre just PCs what are you on about?

I don't buy games that require third party launchers ever. Been burned losing my Ubisoft account or w/e a few times. The warnings are helpful and steam doesn't have to say anything at all.

If steam shuts down and all your games are on a valve device. I only addressed that because it seemed it was being used as an example in the prior comment, as if that protects them more than an Xbox does.