Mostly photography gets noticeably better, but I still hope that at some point "convergence" becomes good enough. It has been tried again and again but always fell short due being not quite good or easy or convenient enough (getting docks, cables etc.). With usb-c/usb4 as a single connection and "good enough" processing and storage maybe in a few years?

https://maruos.com/

https://en.wikipedia.org/wiki/Motorola_Atrix_4G#Webtop

https://en.wikipedia.org/wiki/Ubuntu_Touch

https://en.wikipedia.org/wiki/Samsung_DeX

https://www.microsoft.com/en-us/windows/Continuum