Owner of Kirkland Signature 22" roller here for a # of years.
No, they are not accurate as far as exterior measurements (those are interior #'s given) Height, floor to tallest point/handle/top of case is 22.75" and depth is closer to 10" even when it's not stuffed "full" - expanded, it's even taller & no way GA will let you board with it, as it will not fit 90% of the OHB. It would also be so heavy as packed that lifting it can be a challenge.

Lately, I've only taken in on JetBlue flights as they do allow up to 24" as carry-on legal and I've gotten it onto KE's A380's OHB. It is very deep and can pack everything needed for a week to 10 days worth of items ... with thick/winterwear, unzip the expansion as needed. Amazing to use this without packing cubes, just roll & fit - it keep swallowing up. It's mainly use for car/road trips year-round and on cruise-vacations; and, as a checked bag flying TPAC, gotten a few scratches on the corners & bumpers, but otherwise, it's almost like new.

At about $120 shipped if order online - it's a best buy. eBag's private label brand prices had risen quite a bit in the last 2 years - otherwise, the TLS 21" or 22" rollers are great - lighter at around 8.5 lbs & sturdy. I use that more than these days and sometimes take the 22" Motherlode convertible backpack instead.

OP being in Frances & flying Euro carriers with tighter rules on size & weight for carry-ons, I am not sure if the Americas have anything that match his/her requirements as noted + cost of shipping. Maybe on a run over here, pick one up while in-town or get a friend to bring one over.

Costo in Asia supposingly has a smaller sized variant of the above Kirkland Signature carry-on roller/spinner ? in the 18" to 19" or 20" size - haven't seen or read any FT'ers reporting on & uploading pic/links.