Okay, they're not in the level of a 3D Mario obviously, but with the exception of perhaps 1-2 Switch, they're a bit bigger in scope, and more complex than the games they made on the DS/3DS. Labo for example, looks simple on the surface, but like takes more money and resources to prototype and develop than something like Brain Age, which could be done with only a dozen people on a budget of Peanuts.
^This. Still don't get why they decided on cardboard though. Like that LABO got approved for Mario Kart and Smash, and LABO VR shows that Nintendo managed to do VR without ending up with another Virtual Boy.