After looking at the site and trying to determine what to download to get Debian with non-free (I’m unfortunately working with an NVIDIA card)
FWIW, Debian 12 now includes non-free firmware in the installation media by default and will install whatever is necessary.
I agree that the Debian website has its weaknesses, but beyond finding the right installer (usually netinst ISO a.k.a small installation image on https://www.debian.org/distrib/) there isn’t much of a learning curve. I started out with Ubuntu too, but finally decided that enough was enough when snap started breaking my stuff on desktop.
Depending on how one defines the “initial development” phase, those projects are actually conforming to semver spec: