Yep. There’s a few differences for variants of characters, or at least there are in non-New Horizons games - BOTW gives different items for various Link Amiibos depending on incarnation, Mario and Bowser have similar ones, and while I haven’t checked since the 2.0 update I think any Isabelle or Nook amiibo drops them in their current outfit rather than distinguishing between spring/summer or fall/winter - but across games, the character is the character is the character. I remember being able to use the Samus Returns Samus Amiibo for games that came out a couple years before and having the same results as using a Smash version. (Now I kind of want to see if using a Series 5 Sable or whoever in HHD works.)