There are some really cheap eSBC chips that run Linux. You can get a dev board with a Rasp Pi form factor. Any chance that these are powerful enough to run Octoprint?
If the performance is about the same level or better than a pi 3 - then yes.
OctoPrint also runs on slower hardware, but it could impact print quality (blobs and printer freezes)
I hope those milk boards find a broad audience.
It's a shame that so many risc-v boards where discontinued.