JP Mens on Nostr: Am I the only person who opens a PDF, say, with macOS Preview ($ open a.pdf) and ...

Am I the only person who opens a PDF, say, with macOS Preview ($ open a.pdf) and sometimes gets previous files opened as well?

It's annoying (and it can be embarassing). I have Recents=off and I've no idea where it comes from. This has been happening since (roughly) two macOS releases.

Is there a magic incantation which will stop that from happening in Preview? (Not just PDF, also jpg, png, etc.)