Additional meeting and call-related features and issues within Microsoft Teams for Education
Hello SrikarMaddula,
My name is Veejay, an Independent Advisor and a Microsoft user like you and I'll be glad to help you.
If you don't want to pop out the meeting in a separate window, you should disable "Turn on new meeting experience"
To do that:
Click on your Profile Picture > Settings > Under General Tab, Go to Application Section > Uncheck/Disable "Turn on new meeting experience". > Close Window.
After that, Restart Teams by right clicking on the Teams icon at the task bar > Quit.
Then start Teams app again.
Please let me know if you have any questions or concern.
Thank you