To schedule an online meeting at Microsoft Teams, dyou should go to the "Calendar" option in the left bar and choose the New Meeting option. Here you can set the meeting details and add guests (250 maximum).
With Microsoft Teams it is also possible to share the session link with students so that they can join the class. The process is slightly different than in Colibri (Zoom) because the link is created only after the session is started. See details in Create a session with Teams and share on Moodle .