Splatoon 3 has revealed that special bonuses can be obtained in the game if you have save data on your Switch system for Splatoon 2.
A full (and subjective) Splatoon 3 stages tier list, updated for the latest season.
NE: "Today, we're looking at a big list of all stages not in Splatoon 3, plus which ones we'd like to see added before the game's final update."
NE: "Splatoon 3 is home to lots of Badges - we've listed which of the Splatoon 3 Badges are most difficult to earn."