Expand? The design constraints seem very dissimilar: - weight is important, form factor isn't - any app is either doing 3d rendering or integrated into a windowing system ala a trad desktop - they are not constantly-on, they are used for long periods with breaks - they are limited by processing power not by UX - the peripherals are very complex - to the extent of complex requiring access to hand and/or controller movement at a very fine level

If anything they are similar to laptops, but overall they are their own device class.

If "similar to mobile phones" means "similar chips and batteries"... sure, but so are laptops build after 2020, besides that I don't quite understand the comparison.