For those who owned a perpetual license before 2020, you can still install AutoCAD 2022. This is the "best" version for users who hate subscription models. (Note: Maintenance plans are no longer sold, but existing licenses work).
Since Autodesk moved to a subscription model, here is how to get the legally: autodesk autocad 2022 version completa best
This allows users to publish CAD drawing sheets as PDFs directly to Autodesk Docs For those who owned a perpetual license before