Hi,
Following the Metallic guide for SharePoint Custom Configuration where there are instructions for registration of the SharePoint App-Only principal. This approach is outdated and only used for specific cases, see this link for details: https://learn.microsoft.com/en-us/sharepoint/dev/solution-guidance/security-apponly
Now to my question - as we only use SharePoint Online only and the guide is from 2021, are we still required to register the SharePoint App-Only principal or will we be fine with the Azure AD App registration only?