The second game I ever 100%ed was Arceus and I still can’t stand the thought of picking it up again, years later. The first game was Horizon Zero Dawn, which is still fun.
Sable was a perfect open world that I 100% in about 30 hrs. Totally didn't overstay it's welcome. I think they added a fishing quest after I played it so not sure how much that changed things.
I really liked that game and got to 100%, but damn the frame drops. Did the devs ever fix that? It was excruciating anytime you took the hover bike anywhere