Viva Amplify Data Structure / Architecture design

Hi,

Can anyone share a data architecture map for Viva Amplify? I'm aware that it creates a SharePoint site with a viva-amplify.aspx page and an associated Team.

When testing with an adm account that did not have a OneDrive account, I got an error, so assume some aspects are saved in OneDrive?

Also, the Outlook distribution channel - does this require the Exchange admin role and is any data (aside from the email sent) stored in Exchange, relating to Viva Amplify?

The Microsoft documentation states you require a SharePoint admin role and a M365 Groups admin role to set-up. Is this also to create campaigns or just the set-up?