This project could achieve this via the following. Project up an alternate screen. Put an “app” on the screen called maruOS projected at external screen resolution. Then get access to your phone storage and maybe to your phone hardware like mic.

Then pretend there is a huge possibility of apps that can run on Maru OS.

But it is Too little too late. Samsung DEX did this. Google is supposed to invent this (again). Everyone has failed. All apps need separate desktop versions to do this work. Essentially they need a second desktop app. This means more ram and more storage and more power.