Based on online reviews, and the glowing endorsement from Linus at LTT, if it wasn't for the AI driven RAMpocalypse I'd have already purchased the new Steam Machine.
I don't need the bestest and fastest rig because I've still got a massive backlog of titles from the seemingly endless Steam, GOG, and HumbleBundle sales left to play.
What I do need is a small, quiet, daily driver that can handle my media library, take care of my emails, and slice the various .STL files for my FDM and Resin 3D printers. A daily driver that doesn't get bogged down by the useless AI crap pushed by Microsoft, nor the seemingly endless updates which always somehow manage to come up just as you're about to do something with the machine. Everything I'm seeing says that the desktop mode within the new Steam Machine is a heavily curated, and manufacturer supported, experience which makes handling your daily tasks a breeze while the underlying Linux architecture gives you full control for those times one needs to break out the arcane command line with the seemingly endless dash options appended.
I could put it in my room on my 60" flat screen, periodically game when I have time, manage my media library, do my daily tasks, and then let it run BOINC in the background while I'm at work to do my part in the fight to cure cancer and diabetes all the while embracing the "Year Of The Linux Desktop!"
Stupid RAMpocalypse!