We acknowledge the demand for this capability and are exploring the best possible solutions to enable this.
~AlexPhil Hawkshaw commented
Having to reopen a doc which I’m reading every time i receive a message is a pain. Being able to detach the activity window would easily solve this.
The feature team has this on their backlog officially now. We don’t have any timing to share at this point, but we will keep you posted.
Alex & the Teams team
I hate to bear bad news but this feature request has been declined by the feature team.