As soon as you have to enable a a deamon/service, you have to interact with systemd. Systemctl is the command that is used for that (with option enable, disable, start, stop and restart)
Some programs require you to enable such a service, in order that they work, but would not talk about systemd while explaining install of xyz, more like “enable xyz: sudo systemctl enable xyz”.
As soon as you have to enable a a deamon/service, you have to interact with systemd. Systemctl is the command that is used for that (with option enable, disable, start, stop and restart)
Some programs require you to enable such a service, in order that they work, but would not talk about systemd while explaining install of xyz, more like “enable xyz: sudo systemctl enable xyz”.