Where does Windows 11 store File History

I had File History running in Windows for a while, probably staring under WIndows 10.  I could go the the drive where History was stored and browse through the versions of files there with File Explorer.  I recently discovered, to my horror, that File History was NOT running on my machine.  I started it up, and it is now running.  However when I go to the drive where the files are to be copied, I can''t find them.  I find old ones from last year, with the date & time added to each version, but nothing new.  When I use the built in restore feature I can see a few recent versions of a file that is updated every weekday.  But I can NOT find anything using File Explorer.  Google has let me down, Microsoft Help has let me down.  I have found nothing about WHERE the files are stored.

(I'm no Windows expert but I've been using it since the Windows NT days, when I was a Microsoft SQL Server MVP.  I'm long retired, but not a complete newby.)