'Why can't I sync my Unity project between 2 devices using Collaborate?

I am new to Unity, and I am trying to sync 1 project between 2 devices (Windows / Mac) to make it more convenient. I knew that most people use Github, but some say Collaboration can also work.

I started up a new project on the Windows PC and turned on Collab. I later went to my mac and opened up the remote project. However, my mac only showed a blank 3D scene. My Mac only synced the changes made from the Project Panel.

Is there something I have mistaken, and what should I do?

Thank you!

Windows project(changes published)

opening up Mac projected(blank scene)

Chose the Windows platform on Mac(is that right?)



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