Comment by ChocolateGod

> There are multiple distros devoted to not moving to systemd

Yes and zero have wide spread adoption outside of specific use cases (e.g. Alpine with containers, Android with its.. slop).

As far as base distros go, only RHEL and Debian have any wide spread impact and both use systemd.

> so this was a purely political choice to spite their own linux user base.

It's possible the old system exists as a fallback, but it wouldn't surprise me if its not guaranteed to stay around. People aren't required to support other peoples choices unless you pay them.