I would suspect that making a stable desktop inside docker ensures it would work everywhere else, no matter what the hw/sw of the host is.
I've only known docker as a building environment that ensures rebuildability and I can't say I ever liked it. I think its popularity comes from some myth of safety and security.
I hope you are kidding, trolling, as those things, plus audio/video editing, started fron unix when it wasn't conceivable to do so on PCs with proprietary OS. All those corporations who later sold such sw copied/stole FOSS and dressed it up as their own.
No team or corporation can ever ever catch up to FOSS development. It is a neo-liberal fallacy that promotes them on marketing hype.
Suspiciously all current LTS expire on Dec 2026 there is nothing planned ahead of this. And 3y for 6.6 is the shortest of any LTS I remember. My bet is Linus retiring then LF taking over everything.
Near double the size and resources for having a dock/bar/menu and pinning icons on the background .. too much clutter for things hiding behind whatever you are doing most of the time.
A desktop is something you use to impress someone using mac/msWin ...
s6/66 simplifies dependency of running/starting, automatically enables an s6-log for each service/daemon/bundle it is much faster and smaller than systemd (by a factor of 10 maybe), and once it is up and running it is virtually impossible to bring down without its own routine. Servers have run consistenly for a decade with s6, including skarnet.org
I assume that Manj follows #Arch and doesn't improvise on sys dependencies. Definitely not poor.
Arch-archives by date, means you can build a system exactly as it was fully upgraded on a specific date, and the system works just like it used to.
Other systems that may carry 3 versions of the same library because different sw use different versions are the ones with the problem. Except for redundancy and space the system is not very coherent..
partial upgrades on distros without hard linked dependencies is a disaster caused by the user.
You should never have a system with less than 20% free space, but I mean system, not /home, not /var/cache/ of /var/cache/pacman,
Make partitions and mount things separately, especially /home
In a pinch you can live without man-pages remove /usr/share/{doc,man,html}/*
and on /usr/share/locale/* keep just the ones you use