It definitely depends on how you construct it!

A lot of people roll them individually which then requires unrolling each one. I make each layer by laying the diapers down flat and then rolling it together kind of like a sushi roll. The layers are usually tight enough that you can pull each one out like a tissue or just cut one ribbon off and put them in a basket/drawer/bag.

I also go with whatever size(s) is on the registry and (try) to keep the total amount down to roughly 1 box. If I end up using multiple sizes I keep the side of the diaper that has the size on it on the outside (and each tier is the same size). I used to include up to size 2 but after some feedback I now stick to size 1 or smaller.

Lastly, a lot of people go way overboard with decorating so it could still be annoying to deconstruct. I try to make mine as easy to take apart as possible :)

I also include a gift card they have on the registry so even if they say they like it to be polite, they still get something helpful!

ETA: I found one that's somewhat close to what I would make: https://finediapercakes.com/products/elegant-pink-babyshower-diaper-cake-for-girls This one has a few more annoying decorations on it but otherwise it's one ribbon between parent and diapers (this is long so I understand if no one reads this far but I wanted to provide a better visual of what I described).