Origins was genuinely pretty fascinating to walk around on its own - the guided stuff was a fun, well put-together reason to do it some more.
It’s also why Odyssey bums me out just a bit. Origins makes Egyptian culture so integrated into every aspect of its world. There were tons of little bespoke animations, depending on who was where. People harvesting honey, pulling birds out of nests and snapping their necks (?!), doing funerary rites. The works.
Odyssey just has people through Zeus’s name around a bit with people walking around in togas and kinda calls it a day.
But yeah, I wish more games would let you kinda casually walk through their environments. Naughty Dog’s games have those really good looking levels that you gotta fill with corpses before you can really play around with photo mode.