AppStream 2.0 - Nice DCV - can a user delegate control to another user connected to the same stream

AppStream 2.0 are single session host, not multi-session.

AppStream 2.0 is single user per instance, and intended to be a single streaming session at a time. User connections are per username per stack/fleet, so a subsequent user would be sharing the same username as the original user which would impact things like S3 Home Folder, App Settings Persistence, App Entitlements, and other things.

In the event that a user needs to share screen with another user, using a screen sharing utility like Amazon Chime, Cisco WebEx, Google Meet, or other similar technology is recommended. Those can provide the ability to delegate keyboard/mouse to another user, while the owner of that streaming session retains ability to revoke access.