Yeah, I operate it like I would a dry-erase board. Ctrl-S doesn't work unless you add some scripting, but I usually copy-paste it if I'm drafting a note, or close it without saving if it was meant like a sticky note. It's good as a longer-term clipboard or a place to privately note down something before deciding whether to keep it.

For notes that I've refined and want to hold on to, I tend to use a physical notebook. I enjoy the kinesthetic process of writing by hand so I still use that for more permanent notes.