I’m trying to get as a response preview on Microsoft Graph all the SharePoint sites a user is a part of, using a “get” querie but haven’t got anywhere

I have a Sharepoint site setup and made a whole structure with folders to divide our attachments in a neat order. But when i need to look up certain folders I needed to have a way of finding the correct folders based on an ID within my system.

We have a conversion to upload all the attachments to sharepoint, this conversions runs in multiple threads and can take a while since we could have lots of attachments.