That's part of it! There's also a lot about resolving conflicts of interest between current (or former, or prospective) clients, and what to do if your client perjures themself; also things like "Do not send personally insulting emails to opposing counsel!", which unfortunately seems not to go without saying.

A decent amount of it is actually irrelevant to me unless I end up moving to private practice later, because as things stand, starting next September I will have exactly one client, and that client is the People of the State of New York! But definitely still important to know.