Office 365 Groups vs Azure AD Security Groups

probleme d’acces via groupe office365, recherche de site, hung workflow

https://threewill.com/office-365-groups-vs-azure-ad-security-groups/

mail enabled security group or not
https://www.imanami.com/mail-enable-an-active-directory-security-group-or-not/

best practise:
Do not add AD group directly to the site! Create a SharePoint group and add an AD group inside of a SharePoint group.