Would be really nice to have additions from 1.21.X versions to be backported on the 1.20

Sorry, but it would be really tough to backport the content from 1.21.X to 1.20.1. There are a lot of reasons, the major one is the fact that they're on two different modloaders, neoforge and forge, some of the things may just be impossible on forge 1.20.1. By the time I finish the backport, people would already migrate to 1.21.X, I just don't see too much sense. Thanks for understanding.

As much as this version goes, some basic features like recipe for obtaining Blood Soil is still missing, and there's probably some other miner things that make the version kind of unfinished. While this is a half-assed solution, can't you add some sort of data pack or minor revision to this branch that has at least these features? I can assure you, there're some developers that keep their mods Forge exclusive or just port to all versions they can and lot's of mod packs made by amateurs for local play rely on mods themselves.
But eh, your call in the end.