Ubuntu will not support RISC-V CPUs without RVA23 support going further, so this is stuck on 24.04 forever. There is no official Debian image either, and the Ubuntu version uses fixed kernel 6.6.47 with no further updates (it is not even installed from a repo).
I own one since a couple months ago but I already regret the purchase.
I owned every generation of Raspberry Pi and I still use the 5, 4, 3, and even a 2 Model B. Their software/ecosystem support is unmatched by any other SBC line.
It's actually worse than that, even getting updates kills the image. I did manage to work around it. but overall I don't consider it a platform for anything I would depend on. It's fun for experimentation, that is about it
Ubuntu is the worst of the Debian based Linux distributions. Give MX Linux a try. It's rarely evangelized, unlike other Linux distributions, but it has a surprisingly high user base, and for good reason. Everything it has added to Debian enhances it, and it doesn't try to promote any services, like Ubuntu does with Canonical's services.
Regardless of the Linux distribution, it's still way to early to get good support for RISC-V. Current products are good enough for general development, but RVA23 was ratified less than a year ago, and I don't know of any designs started after the ratification that have hit the market yet. Once that's the case, it should be easier to get universal support, but until then, every RISC-V SBC is a one-off development board.
Funny how software matters I bought a specific eink tablet and the lag and choppiness in drawing made me immediately sell it for something more well known.
Sucked too as I lost $300 but hopefully helps open source community anyway
I own one since a couple months ago but I already regret the purchase.