Still waiting the day, when I as attendee could see the shared window on full screen mode. When looking for the shared application, I would like to focus to the presentation, not for the speaker's video or chat communication. This helps also attendees who have small screens. But perhaps my hope is hopeless..
Would you Microsoft_Teams_team also be able to share some thoughts how did you thought it would be good idea to have "Starting recording and live transcript simultaneously"? And do that even so, that nobody have possibility to affect to the behavior. At least, user should be able control this from settings does s/he wants to start transcript as well. We can control this from policy, but that impacts to the full "live transcript". So disabling that, then user cannot do transcript at all. Did you even knew that?
As you had updates to VDI on this post, may I ask if you do have any plans to bring the "share control" to VDI devices? Has that been forgot by accident? Today, when someone shares application on Teams Desktop application, then attendee on VDI is unable to take the control.