> While they're somewhat compatible with standard Linux distro, in order to have full support, one needs to use the adhoc ARM distros.
Maybe you mean something specific by "adhoc" or "full support" that isn't apparent to me, but Ubuntu has ARM distros today and I expect that ARM support is only going to get better as (1) ARM continues to make headway in the server space and (2) Apple Silicon pressures desktop/laptop OEMs to adopt ARM.
Just because Ubuntu has "ARM distros" doesn't mean those "ARM distros" have the necessary drivers needed to actually use all features of your SBC. The fact that Vulkan support in raspberry pi landed in 2020 should tell you something.
Even the most well known SBC series is getting driver support at a glacial pace. When was the last time you waited for your x86 iGPU to get vulkan drivers?
Maybe you mean something specific by "adhoc" or "full support" that isn't apparent to me, but Ubuntu has ARM distros today and I expect that ARM support is only going to get better as (1) ARM continues to make headway in the server space and (2) Apple Silicon pressures desktop/laptop OEMs to adopt ARM.