Yeah, this was something I noticed not long after I got off the ship. It creates a few on the ship, but after that, they seem to fall off dramatically. My list is a bit shorter though:
Long rest/fast travel are essentially the same thing. It can choose to either save before, or after one arrives at the destination, and entering or exiting specific rooms, such as in the Druid Grove, or basements, etc., where we get a loading screen.
Saves after battles are what quick saves are for, and the same with waypoints.
As noted, more are on the way, so here's hoping.