those look quite interesting, I'm thinking if it may be good to backport those changes back into 6.1.x used with Armbian currently.
However, I'd think similarly, it is going to take a lot of work to do the same, including testing etc.
another idea which may be quite interesting could be to try the new v6.5 kernel, compile from source,
but thinking it through, the steps would likely to be quite similar with tests etc. e.g. that it is less likely to be a 'just works' setup and requires quite a bit of work to have all the peripherals working.