Coincidentally, today I removed systemd from my laptop (Debian Trixie.) It was reasonably easy. I booted from a USB drive into a shell through debian's "rescue" mode and typed plausible-looking apt commands until it worked. For some reason it didn't create /etc/inittab and I made a typo when I tried to do it myself, but other than that no problems. Differences noticed so far that a normal user would care about: none. If nothing goes wrong I guess I'll do the same on my desktop at home this weekend, because why not.

Nothing against systemd, but I think it's valuable to continue having other options and it was fun to see that it's still pretty easy to use them (maybe harder if you're a GNOME user, idk.)