I'd say Breath of the Wild and Tears of the Kingdom had a lot of depth. There was a ton of stuff to do. I have 340 hours into Tears of the Kingdom and hit 100% on the map, but there are still things I haven't done and stuff to explore and try. I find they also have a high replay value, since they are so open and there are nearly infinite ways to solve the various puzzles, traverse the world, or engage in the various battles... or don't. I once started up a new BotW game to see how far I could get without actually fighting anything.
