I haven't finished TOTK yet and I feel the same. It's a good sandbox game of zonai tech, but IMO it's not a good "Zelda" game. I know people might argue that traditional approach of dungeon puzzle or boss design makes it too "linear" or not exploring the creativity of player. Basically, designer designed how a puzzle or boss should be dealt with. BUT, at least it was done in a meaningful way that you learn along the way of different mechanism and how older Zelda shine.
I will probably try finished all the shrines and story and put it away. Since the side quests I run into so far are mostly copy paste side quests. (photo quests I will probably do them all if I can find them. I like photo quests)