"I am a new linux user. After 15 minutes of research on google, I found a few forum posts and some niche websites that said SystemD was bad, so I took it as gospel. Now my system doesn't work as simply as it did with installer defaults? How do I make everything Just Work™ after removing any OS components I don't understand the need for?"
He uninstalled systemd, now his computer is not doing systemd things anymore by his retelling. Seems like it worked fine. Yet he asks for a solution of a problem. Maybe he needs to state the problem.
Lol this reminds me of a time when I had KDE desktop environment installed on vanilla ubuntu. I thought I didn't really need ubuntu's default desktop environment and decided to 'purge' it. I quickly realized my f up when it deleted so many packages and ui started to act weird, I copied the shell's output to a file just incase, and sure enough I couldn't login with ui on next reboot. I was somehow able to login to shell and with some awk magic I was able to parse the text file to get all the packages I deleted and lo and behold everything worked just fine. Linux let's you f'up your OS but it also let's you fix it, it's just a skill issue.
I updated my sources.list to something non-existing at some point and run sudo apt update && sudo apt dist-upgrade -y && sudo apt autoremove once and it also basically uninstalled everything. But that didn't even matter, I popped in a recovery disk and could reinstall everything. Pretty great to be able to do all that with Linux, fuck everything up in an instant but after a few hours everything is back again
You can switch seamlessly between systemd and openrc on gentoo. Although it might be worth using one of the debian derivatives in this user's case - not sure they should be messing with their system too much!
MX, always based on latest Debian, is using sysVinit, but you can also boot with systemd if you want, it supports both. MX is pretty popular, simple, fast, Xfce by default, and very up to date on everything. I'm using it for 6 years now, on laptop, PC. Also maybe it's me, but no flatpak, no snap, etc, not needed, for instance latest FF is a standard .deb