Oh? I thought Apple refurbs were practically new, only they get manufactured with differently sourced pieces… or maybe some reused elements but that look like new. I always got the impress that Apple refurbs were almost new, not being able to tell them apart from new ones (aside from the white box).
I cannot speak for myself tho, as I’ve never purchased an Apple official refurb.
Congratulations! Even tho I’d have purchased it new or from Apple refurbished store (which looks like new and come with a new battery), the M2 iPad Pro is definitely the better purchase over the M2 Air if you aren’t interested on the Apple Pencil Pro, which is exclusive to the M2 iPad Air. Or if you make a lot of FaceTime/Zoom, the front camera is now centered if you use it in landscape.
Other than that: Face ID on the Pro vs Touch ID on the Air, better display, better speakers, better port (Thunderbolt 4 vs regular USB 3?), better graphics (10 core GPU vs 9 core GPU)…