When I start my computer and see the login screen of lubuntu I can choose at least 3 different 'sessions': 'lubuntu', 'LXDE', 'OpenBox'.
Even further confusing: once logged in, you can change settings for at least two of these (LXDE and OpenBox), which makes you wonder what you're really changing, and whether it applies to all (overriding some other setting?) and how those configurations interact (they seem to overlap significantly).
I understand that someone may want to 'experiment' with simultaneous window/desktop/session managers. But does it make sense to have them by default? In case they are actually different things, why are they presented as a list of 'sessions' as if they were functionally equivalent?
I find this a bit confusing.
Edit01: I'm sorry if this sounded like a complaint, I love Lubuntu and hope I'll stick with it forever. So maybe I'm a bit frustrated when I don't understand. I do appreciate the work from all developers!