Specifically with the Samsung Folds they solve the following:
The mobile power user that needs ultra mobility without the need to carry a laptop yet still be connected to corporate information and workspaces and documentation/data with the flexibility to present and manage that data with their team or the business while travelling.
The OS allows for split screen multi-tasking on the outer display: imagine playing a voicemail or video in another language and running translation at the same time. I’ve tried this on iOS 14-16 and still currently nobody can do this! Native apps including voice memo cannot be done!
Internally the OS allows for 3 split screen apps to run simultaneously (some may be for input and output translation while an the for reference) + 1 pop up app on top of them or to bring off tot he side off screen until you need it.
Specifically I queue to Samsung is a proper desktop os experience called Dex. Android allows you to run mobile versions of Microsoft office while the desktop allows desktop versions that can merge with your M365 license. (I’m not certain if add-ins can be run in Excel I’ll know in about a week when I get my S23 to test). Also imagine connecting to corporate space securely using Citrix Viewer and able to run 2 instances of such connection simultaneously!
This effort or paradigm, the purpose of such a device, was first led by the Nokia Communicators and Ericsson as well but Ericsson pretty much gave up earlier on.
Thai generation of devices has a LOT of uptake and about 5 competitors that is continually growing so the demand is significantly there. Apple I don’t think will do this because it’ll seriously affect their casual iPad user sales and potential very light use casual MacBook Air user. Notice that the MacBOok is completely gone from their lineup for some time.
Multitasking on portable multitouch devices without keyboard/mouse is pointless IMO. Downsides of the amount of resizing/window management outweigh any benefits over just running the app in full screen and switching manually.
I accidentally touch the iPad's multitasking function at the top more than I ever use it.