For pseudonymous use you can define registration without submission of name or email address to Zoom.
First log in at https//www.idm.fau.de using your IdM-ID and adjust the settings under „Self Service“ -> „Settings & Applications“ -> „Cloud-Services“ – „FAUZoom“ (Direct Link: https://www.idm.fau.de/go/application/cloud)
as desired.
Please note that activation of pseudonymization takes a certain amount of time and that this activation will remove all user data saved with Zoom irreversibly.
In case you decided to reverse this pseudonymization at a later point in time you can do so at the same location (see above).