File sharing with annonymous during video meeting

Does anyone know if it works below? 

We disabled Teams option that “annoymous can join the meeting” because it may cause data leakage during Video conference with external resources.

Also our Onedrive / Sharepoint file sharing policy is that “Allowing file sharing at the organization level” so we restrict external file sharing.

but As far as I know, Teams file sharing is based on Onedrive and Sharepoint policy

if we enable “Annoymouse can join the meeting” option,In this case, our employees won't be able to share confidencial files to annoymouses during the video meeting. is this correct?

Could you please provide us some clue or simulation result saying that It is true? I would like to have clear evidence

it would be great if I can find an official answer from Microsoft.

Thank you for your help.