[Questions about the Installing Sync on Linux guide]

This is regarding the Installing Sync Package On Linux guide, the following section:

Quote

systemd

Enable sync service automatic startup as user rslsync:

sudo systemctl enable resilio-sync

Enable sync service as current user:

...

In what case would I want to do sudo systemctl enable resilio-sync vs systemctl --user enable resilio-sync I don't understand what the advantage over the other is and what is supposed to be "best practice"?

And am I supposed to run sudo systemctl enable resilio-sync as the user rslsync or as root?

Thanks for any clarifications?