We use Microsoft Office 365 products, so we are heavy in Teams, OneNote,
OneDrive and Sharepoint. We contain our user training in a OneNote
notebook, with Sections and pages for each type of license, workflow,
proofing, FAQs, etc. We like One Note because it is easy to search, and
we link that notebook to our Teams/Sharepoint sites. It is really easy
to keep it updated as things change!