Nvidia's Project Digits is a 'personal AI supercomputer'

I'm looking at my Jetson Nano in the corner which is fulfilling its post-retirement role as a paper weight because Nvidia abandoned it in 4 years.

Nvidia Jetson Nano, A SBC for "AI" debuted with already aging custom Ubuntu 18.04 and when 18.04 went EOL, Nvidia abandoned it completely without any further updates to its proprietary jet-pack or drivers and without them all of Machine Learning stack like CUDA, Pytorch etc. became useless.

I'll never buy a SBC from Nvidia unless all the SW support is up-streamed to Linux kernel.

Is there any recent, powerful SBC with fully upstream kernel support?

I can only think of raspberry pi...