I found a reference to the paper “The Two-User Responsive Workbench: Support for Collaboration Through Individual Views of a Shared Space” while reading. The quote mentions that, similar to traditional CSCW systems, AR and VR applications can show personalized content to each user, based on their viewpoint. This individualized perspective can impact the users’ sense of presence in a shared workspace if the spatial coherence is lost.
The text also references another paper, “Lessons Learned from Employing Multiple Perspectives in a Collaborative Virtual Environment for Visualizing Scientific Data.”