Additional meeting and call-related features and issues within Microsoft Teams for Education
Hi Lukasify,
There is one setting for camera in the Microsoft Teams, click your Profile picture at the top of Teams, then Settings > Devices > Under Camera, select the camera which you want to use for teams meeting on the Microsoft Teams. You may refer to this detailed official article : Change your default mic, speaker, or camera
Please let me know if you need more assistance.
Regards,
Grace