But that's just a usability issue: what's far more significant is that, even after I've tried googling for multiple different terms (like "audacity move tracks between projects" or "audacity import projects" or "audacity copy tracks") there still appears to be no way, under any menu, to even conceptually copy or move tracks from one project to another.
This just seems ... wrong, and I'm willing to bet that I'm the one who's in the wrong, not Audacity, because this seems like an incredibly basic feature to missing. So can someone please tell me what an idiot I am and what obvious way I'm missing to share tracks between projects? Because exporting a file as a .wav just so I can import it (and then have to re-split every track apart) isn't cool man