Revert to last saved, now that saving has been obsoleted

Now that more and more document based applications do the modern "save, duplicate, revert to" Versions thing instead of the traditional "save, save as, revert". Having had 30 years becoming quite adept at the traditional workflow, I'm having trouble adapting. For example, often I'll open a file like a spreadsheet, hide a few columns, paginate in landscape orientation, print, and then click the close button expecting that the file on disk wont have changed. But it has... So how do I revert to the version of the file you opened before? PS: I assume [this answer](https://apple.stackexchange.com/a/50585/202413) to its 10 year old question is sarcastic, awaiting something a bit more sensible.