In a broader sense, the best games are fun to simply exist in. Getting from point A to point B should be interesting from a movement perspective.
Mario Odyssey is a great example. Just parkour'ing around is a blast.
BotW has shield surfing and such.
Lots of shooters have a bunny hop mechanic.
Wave-dashing in Celeste.
Etc etc.
That's just...wrong? Cats have incredible kidneys and they can drink salt water.