While I think something like this makes sense, the pricing seems off. For $600 you can build a PC with a desktop GPU. If you want to make it easy to set up, you could just use an off the shelf mini-PC and preinstall everything so a non-technical user can get started without any hassle. I really hope we’ll see more Steam machine like devices in the future.
8600G is a very capable desktop processor
https://www.amd.com/en/products/processors/desktops/ryzen/8000-series/amd-ryzen-5-8600g.html