Pokémon Pokopia is now out worldwide for the Nintendo Switch 2 console, and you can use the GameShare feature to play with someone who owns the Switch 1 console.
Pokémon Pokopia is exclusive to the Switch 2, so there's no native way to run it on the first-gen Switch. However, having the GameShare feature will allow you to bypass that limitation. While the feature is immensely beneficial, it's pretty glitchy and limited as of writing on launch day.
