We should probably create a separate topic for this but here’s how things work…
Red Hat = The Borg (you will be assimilated)
Fedora = Borg Development Arm
n Linux Distro = Assimilated
Red Hat, acting as a somewhat Benevolent Dictator, determines what happens–what direction–ALL major and most minor Linux Distributions take. There’s not much choice–it’s either that or run Windows/MacOS–or ChromeOS (hah!).
There’s Devuan, AntiX, Void, and a few other packaged distros but nothing mainstream other than possibly AntiX.
Absolutely. And few have any other choice (see above).
Arch Stable systemd is still in 239 (240 in Testing) and the current kernel went to 4.20 only late yesterday. Arch Stable, to experienced users, is at least as “stable” as Manjaro Stable and even more so than Manjaro Unstable (because that’s where the metal meets the meat).
As an individual Linux user, if not running Arch Stable I would choose to run Manjaro Stable. I believe that is@philm’s point–if you want stabiliity, run Stable.
Both true and not true. Manjaro Unstable users are a nifty testbed for Arch Testing. Using SystemD 240 against kernel 4.20 etc. is of inestimable benefit to myself and others running Arch. All that hard work will eventually coalesce and filter down to Manjaro Stable.