I was trying to be conservative because I've only really dealt with systemd since about 2016, but damn, nearly a decade of systemd and people still fight systemd vs systemV like it's 2011.
I'm not against systemd myself, to be clear. I think putting services like these into modules of the systemd environment makes sense, and as long as you can disable them if you don't want them, that's perfectly fine. I've had to disable one of them on one of my servers because _something_ was going wrong preventing resolved from caching repeated DNS responses, causing a huge load when a script started scraping a particular domain without any clear indication as to why in the logs. As long as I can do that, I'm perfectly fine with whatever the systemd folks want to integrate next!
I'm not against systemd myself, to be clear. I think putting services like these into modules of the systemd environment makes sense, and as long as you can disable them if you don't want them, that's perfectly fine. I've had to disable one of them on one of my servers because _something_ was going wrong preventing resolved from caching repeated DNS responses, causing a huge load when a script started scraping a particular domain without any clear indication as to why in the logs. As long as I can do that, I'm perfectly fine with whatever the systemd folks want to integrate next!