It's hard to know for sure without being involved in the development of both sides (the line between new features being unimplemented & hw/firmware being buggy

It's hard to know for sure without being involved in the development of both sides (the line between new features being unimplemented & hw/firmware being buggy is often blurry), but here is some context: * Linux 5.x does not support most 12th gen power-management/igpu, >6.1 does * According to a few (unconfirmed) sources, there were workarounds required that first came from clean-linux >6.x (intel's linux fork). So most likely it's a mix of new hw breaking existing functionality, and new features not being implemented yet at release