Waiting room for attendees

Saraiqbal2020 I have included some links that may be of some assistance, if not and you are already aware of these things my apologies.  I would like to take a moment to thank you for what you do!

Here is a link for the participation settings, not 100% sure if this will help since you have selected students.
https://support.microsoft.com/en-us/office/change-participant-settings-for-a-teams-meeting-53261366-dbd5-45f9-aae9-a70e6354f88e#:~:text=Choose%20who%20can%20bypass%20the,of%20people%20in%20the%20lobby.

This one is for an attendance report, you may already do it but thought I would place it in here just in case.  It will show the name, join time and leave time.
https://docs.microsoft.com/en-us/microsoftteams/teams-analytics-and-reports/meeting-attendance-report