OK, I'm forcing myself to put exploration to the side and continuing story missions because apparently one of the biggest game play things (The Ghost Stance) doesn't get unlocked until you get to a certain point.
Honestly, I don't know if I'll have it in me to play another massive open-world game for a while after playing this. For all intents and purposes, this feels like it'll be as big as AC Origins, if not Odyssey.