How to solve zoom @gtempaccount.com issue?
What to do if email shows @gtempaccount.com?
In case you log in to zoom with your google account and then your email is displayed as @gtempaccount.com then you have to go through the Google support documentation. You will find in the conflict accounts section, go through their policies and fix them.
All credit- zoom.us
https://support.zoom.us/hc/en-us/articles/201362693-Why-is-my-email-gtempaccount-com-?mobile_site=true