Having owned a few ThinkPads in my day, I know how annoying fingerprints can be - but on those machines, they don't wipe off as easily due to the soft-touch materials used. At least with the M2 Air, the aluminum finish should be much easier to clean.
One thing I did notice on the M2 Air was that the seams on the bottom (where the bottom plate meets the bottom-sides of the MacBook) are a bit more prominent than they are on the MacBook Pro's, which share the same design. Not a big deal, but definitely something the fingers can feel while handling it. These seems are much more smooth on the new MacBook Pros whereas on the M2 Airs, it's as if the bottom cover is recessed a tiny bit - not even by a hair.