Project for the web - Recycle bin / Versioning

walterax Follow similar architecture like below:

1. Create a separate team site for each department and use the default "Documents" library to store the documents
2. It will be easier to manage the permissions for department users, you can also use the teams in Microsoft Teams for collaboration
3. You can also create department specific pages & other content on each site in future instead of just using the document library - This will be difficult to manage in future if you use single site & multiple libraries for the departments.

Follow below documentation for more information: 

1. Introduction to SharePoint information architecture 

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