I wrote already in April 2020 about this to the mailing list. However, the
situation did not improve since then.
The one and only appliance booting on the DE0-Nano-SoC is Leap 15.0, all
openSUSE-Leap-15.1-ARM-JeOS-socfpgade0nanosoc.armv7l end up at u
ends up showing the u-boot prompt: "=>"
and all newer do not even get to u-boot.
Does nobody beside me use the DE0-Nano-SoC or DE10-Nano?