60 years of the fashion industry has dictate many folding personal accessories eg walletsHonestly, you just gotta use it to understand why so many who have one, don't care to go back to their big slab phone. The reviewer in the video explains it the same way. He just didn't see the point of the flip form factor until he owned one. My Nike gym shorts have pockets big enough to hold a regular slab phone, but the top of the phone would stick out, and there's no way I'd put a big slab like my Note 10 in those pockets as there's no way the phone is staying in there. Gym shorts pockets are loose, and the material is very thin. So there's no way the phone is staying in those pockets as you move around, especially while laying on a bench. But all these types of shorts have a smaller zippered pocket, and that's where the flip result fits in with room to spare. Never worry about the phone slipping out. This is only one real world example. As I was saying once you use it, you start to understand it.
Or do everyone never fold their currency lol
IMO the large format slabs should never evolved if folding technology had been available earlier