Cannot set bypass lobby to everyone on Teams Meeting

Dear Raphaël Perchec,

Thanks for choosing Microsoft community!

I have read your question carefully and done some research, please kindly refer to following suggestions:

In the meeting options the setting is labeled "Who can bypass the lobby". If you change the default setting for any user, it will apply to all new meetings organized by that user and any prior meetings where the user didn't modify Meeting options. | | AUTOMATICALLY ADMIT PEOPLE | | Setting value | Join behavior | | :--- | :--- | | Everyone | All meeting participants join the meeting directly without waiting in the lobby. This includes authenticated users, external users from trusted organizations (federated), guests, and anonymous users. | | People in my organization and guests | Authenticated users within the organization, including guest users, join the meeting directly without waiting in the lobby. Users from trusted organizations, and anonymous users wait in the lobby. This is the default setting. | | People in my organization, trusted organizations, and guests | Authenticated users within the organization, including guest users and the users from trusted organizations, join the meeting directly without waiting in the lobby. Anonymous users wait in the lobby. | | People in my organization | Authenticated users from within the organization join the meeting directly without waiting in the lobby. Users from trusted organizations, guest users, and anonymous users wait in the lobby. | | Organizer only | Only meeting organizers can join the meeting directly without waiting in the lobby. Everyone else, including authenticated users within the organization, guest users, users from trusted organizations, and anonymous users must wait in the lobby. On the Teams client meeting options page, it appears as "Only me". | | Invited users only | Only invited users and meeting organizers can join the meeting directly without waiting in the lobby. Everyone else, including authenticated users within the organization, guest users, users from trusted organizations, and anonymous users must wait in the lobby. On the Teams client meeting options page, it appears as "People I invite". Users added as a part of a distribution group will have to go through the lobby. |

This is a per-organizer policy. This setting controls whether people who dial in by phone join the meeting directly or wait in the lobby regardless of the Automatically admit people setting. By default, this setting is turned off. When this setting is turned off, dial-in users will wait in the lobby until an organization user joins the meeting with a Teams client and admits them. When this setting is turned on, dial-in users will automatically join the meeting when an organization user joins the meeting. Please pay attention to this: If a dial-in user joins a meeting before an organization user joins the meeting, they will be placed in the lobby until an organization user joins the meeting using a Teams client and admits them. If you change the default setting for any user, it will apply to all new meetings organized by that user and any prior meetings where the user didn't modify Meeting options.

And I'm so sorry that whether you can share English screenshot with me. Thanks for your patience and understanding!

Hope this help you, if there is any deviation in my understanding, please forgive me and provide me with more details. I am more than happy to continue to help you. I wish you a smooth new year and all the best!

Best regards,

Kerry