Can this be done on jetpac compose between activities? https://guides.codepath.com/android/Shared-Element-Activity-Transition All the layout views are of course built on jetpack compose

I am going to guess: Probably not. The shared element transitions rely on the good old Views, which is totally different as opposed to compose. Anyway you should move away from different activities. You will probably have to do a single activity, and somehow have a HeroComponent somehow. I am unsure if this will be made, or some madlad will create this (or has already created it)