Problem statement: When the organizer of a Google Meet meeting needs to leave before ending the meeting, if he uses the "End Call" button all attendees leave the meeting.
Desired behavior: Option to remove "End call" button
Solução : Add the option for administrators to be able to remove the "End Call" button in the Google Meet app.
You might want to post this to the Feature Ideas section here (https://www.googlecloudcommunity.com/gc/Feature-Ideas/gh-p/workspace-ideas-group) so that it can be upvoted by others and possibly considered as a future feature enhancement.
If you are submitting a feature idea, be sure to explain the problem that you're trying to solve with the feature idea, not just the idea itself. For example, saying "when my users are trying to do 'A', they often get confused by the fact that the buttons to do 'X' and to do 'Y' look quite similar to each other, which leads to this unintended consequence" is far more likely to get fixed than a feature idea that just says "change the color of the button 'Y'".
Cheers,
Ian