FUENTE: http://tomislavspadmin.blogspot.com/2018/05/everyone-except-external-users.html
Connect-SPOService https://************-admin.sharepoint.com
If you want to show/enable Everyone except external users run the following command:
Set-SPOTenant -ShowEveryoneExceptExternalUsersClaim $true
If you want to hide/disable Everyone except external users run the following command:
Set-SPOTenant -ShowEveryoneExceptExternalUsersClaim $false
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