I think if you’re at the point of poweruser where you’re deciding an init system, you probably should just try them out in VMs. It doesn’t have to take loads of time. Install an OS, try writing some basic services, try doing some basic config for your use-case.
For the vast majority of users, they’ll never have this problem, because they’ll just use whatever init system comes with their OS. I know some distros give init freedom, but most are locked in to one or another init. The fact that you have this problem suggests that either you’re using the wrong distro and should switch to one that chooses for you (or just pick based on one-line descriptions), or it’d be worth your time to spend a day or two poking around with the init systems under consideration in VMs.



Matrix works well for me.
It’s not out yet, but I’d keep an eye on Flatline. It’s by the people who make Molly (Signal client fork—it’s pretty good, been using it for years). Flatline is a Molly-compatible server implementation, i.e. so that you can host your own Signal server. Because generally if someone asked for a “reliable messenger for family use” I’d recommend Signal as a polished and reliable option, though not self-hostable unfortunately.