Total number of documents

Spudgun If you have admin rights go to Usage - Microsoft 365 admin center .

Select sharepoint > Site Usage > Sites > Export
Select onedrive > Files > Export

Hope this helps.

Please click Mark as Best Response & Like if my post helped you to solve your issue. This will help others to find the correct solution easily. It also closes the item. If the post was useful in other ways, please consider giving it Like.