And this one does not have the problem of having only 8 GB of VRAM.
For the moment SteamOS/Bazzite will not run on this system. Intel and Nvidia support is still in the works.
Also, like most PCs, you will not have HDMI-CEC support out of box unlike the Steam Machine. I have read there are ways to add that, but not sure the specifics. Neither of these items take away from that the Steam Machine is very expensive for 5 year old technology!
Buy a PC or build your own!