Cloud saves are also not possible for ACNH because the game file is saved to your console, not your user profile. There's nothing available to be saved to the cloud. The island is shared by all user profiles, and you can't just transfer that to a new console. The most recent update did make a change that seems to imply cloud saves could be coming to ACNH in the future, but how they implement that is beyond me.
@SeparateStinkbug considering this game requires you to wait in real time, losing your data is actually a true loss of time. Which sucks wether you agree or not.
I like the idea that they don't want cloud saves because then you could multiply items. That sounds like bad programming to me on the game devs part. Fix your code then.