The guy throwing out videos about Armbian doesn’t understand what he’s talking about
It’s a build system relying on Debian-style tools and as such produces OS images that rely on either the various Debian or Ubuntu distributions: https://docs.armbian.com/#what-is-armbian
Of course it did: video acceleration and ‘libmali closesource shit’ especially for cheap Allwinner boards running on an ancient 3.4 kernel was what made Armbian popular half a decade ago. Maybe the project’s biggest mistake so far (attracting the ‘wrong’ target audience).