I'm aware of the draw backs but point is there is space to fit these better hardware specs in. It's why I don't think it will ever replace slab phones due to what's needed to be added to offer same hardware the cost will simply be too high.
One area which is hardware spec wise is front display all these companies have made it to make it look like a normal slab device. My only issue with Z fold is the front display is still frustrating to use. For my usage it's not a big deal as I use mine as a small tablet but I couldn't use it as my only device for this reason
Sorry not true as we can seen on an IPhone slab it still does not have a periscope zoom lens as an example on the best selling expensive phone
There are many user types, personally I hardly use the front screen, even if it was wider I doubt I would use it more.
One handed operation I have never used a phone in this manner and again if you look at many phones the UI is often not configured this way again especially Iphone with its menu/back at top left corner on large slabs is polar to the bottom menu
The S23 is probably one of the best large slabs that tried to cover all user types the best with the most hardware specs
However
We learned since the late 50's that personal items and accessories carried around are simply more convenient if folded in theory the largest slabs should never existed had the technology been available that the Fold/Flip and others now offer and can only get better