Earlier quoted context omitted.
Red Hat: Hires Alex to work on Flatpak. Loved by Community, almost a dozen distros supporting Flatpak as a next-gen package format by default. Snap: Loved only by Canonical devotees. Zero distros supporting Snap exclusively by default. Red Hat: SystemD Canonical: Upstart, dead to SystemD. Red Hat & Others: Wayland Canonical: Mir. Dead to Wayland. Red Hat & Others: GNOME 3 Canonical: Unity1-7. Dead to GNOME.
Upstart existed before systemd. I used to think it was NIH syndrome, but its initial release was in 2006, whereas systemd's was in 2010.
For example, Upstart. RH invents SystemD, Canonical stays with Upstart until, like, 2017 before giving up.