It’s an odd one: Apple Silicon would allow for a significantly more portable laptop with far fewer compromises than something like the 2015 MacBook. Not only that, it’s been a number of years since the MacBook Air could be considered remarkably thin or light. These days it’s just “pretty thin” and “pretty light”.
Logically, I would like to see the Air be renamed to just “MacBook”, with a 15” variant for those that want a larger screen but don’t need the extra horsepower. The Air name would better fit a spiritual successor to the 2015 MacBook IMO (though with a usable keyboard and a non-gimped CPU).
As for the 13” MacBook Pro—I don’t understand why that thing is still on sale and being refreshed. It makes the lineup incredibly confusing, with 3 different computers in a $200 price range (M1 Air, M2 Air, 13” Pro).