For anyone who doesn't know about it: you basically go off-track instead of taking the last corner, while dodging the moving barricades.

People already use it on the Switch and I think it's doable on Arcade; can we use it there too?

Even if I never practiced it myself, I sure hope so ! In my opinion it's no accident that these moving barricades were put here, and it's part of the game to take advantage of this shortcut whenever possible. In any case, it looks like quite the challenge. Mastering this trick should be recognized and rewarded. :-)