Goal should be something that makes the transition from Series to handheld as easy as possible with minimal if any dev work, that will require what’s pretty much an S in handheld form
If it’s not compatible with Series titles they shouldn’t bother at all
Don’t see what the difference is. The user interface? A PC that launches an Xbox shell and is Xbox branded is an Xbox. I don’t expect we’ll be going into desktop mode on these things.
It’s one of those legalese matters, since developers/publishers signed the contract with Xbox to release their games on “Xbox Platform”. If there was no legal difference, then MS could release those same titles on general PCs, which may run counter to any contracts those same devs/pubs signed with EGS or GoG or Steam for exclusivity.
Probably won’t be a differentiator for designed for Xbox third party handhelds and laptops that uses Microsoft made Xbox chips. I expect the Xbox handheld, gaming capable Surface laptops, and most of the OEMs in the gaming space to use the Xbox handheld chip.
I think as long as the BC needs HW support and thus a bespoke chip, it’s a Xbox platform.