I got a nintendo switch 2 and i have a decision to make

Pokopia is fun if you played ACNH and wished it had Minecraft blocks, buildings, and level of customisability with a little bit more of a story compared to those two (a lot more if you search for notes and writing humans left behind, but that's optional). The world is set and limited, though, like a bunch of non-endless Minecraft maps where the seed isn't random and can't be changed (but there's a feature that resembles Kapp'n's boat rides in ACNH, but free, in case you want to get blocks without destroying anything or want to get more resources. You can even find human notes and writing and outfits/hair exclusive to those places).

And while you don't have any debt here, you have to gather the materials for every story-relevant thing that has to be built by yourself (and occasional tiny gifts and litter from Pokémon), in a way similar to building Nook's Cranny in ACNH (but putting the materials into a box that comes with the plot you choose instead of giving them to a character). Also, you're going to need Pokémon that specialise in things like building to build those things. Other times, you can usually just build on your own or sometimes with other people Minecraft-style.

Also, I forgot to mention this, but there's side quests and requests, and they work a lot like they do in Z-A. I can't speak about them much because I don't think about them at all and just occasionally decide to do a memorable-sounding one, just like in that game.