Other stacks can do the same, but I haven’t found anything as simple to set up; netdata is just a simple service.
If you wanted to be practical about things you very likely would just give up self hosting entirely.
Much of the crowd around here and certain subreddits IS probably practicing for more, but I have a counterexample. You won't find him around the internet. Not interested.
I have a friend who's recently learned just enough Linux and Docker to get through a Debian install with some prompting, and run a Matrix home server, Nextcloud and Jellyfin because he thought they were cool. Its an old (for him) repurposed desktop.
He's a mechanic. He doesn't care about anything enterprise. He doesn't want monitoring because he'll know if it's down. He doesn't care if backups run because he's sure he's got the important stuff on an old disk somewhere, probably.