A computer system displays representations of second computer systems included in a communication session and/or content in an environment in some embodiments. For example, the computer system displays the representations of the second computer systems in a first region while content is not shared in the communication session and displays the representations of the second computer systems in a second region different from the first region concurrently with content that is shared in the communication session. In some embodiments, the computer system displays the representations of the second computer system (e.g., a representation of a shared content item) such that it partially occludes a representation of the one or more participants of the video communication session when the representation of the one or more participants is a non-spatial representation.