I basically don't leave the Steam UX. Valve has done such a great job here I don't see why any Linux user would consider buying games anywhere else.
I don't even know how to install non steam applications on my current stepup.
The original one with detachable controllers. The SSD is really easy to replace, and my logic is the controllers have to go bad eventually.
Edit: comes with a nice case and 2 USB c ports.
Be realist with what games will work, frame gen only goes so far.
I'd rather spend 80$ on new controllers vs 600$ on a new device.
I basically don't leave the Steam UX. Valve has done such a great job here I don't see why any Linux user would consider buying games anywhere else.