I remember keepass having something like that but it could be inconsistent. That was over a decade ago though. While not necessary, I agree it would be nice to hit a hotkey and autofill in the OS.
1pass has a feature where you can hit a hotkey and it brings up a small app window that I can can autofill anywhere. But you still need to do a search.
One thing I’d love to see is the ability to download a pdf and send that as the change. More options past that like reading the pdf would be nice but not necessary.
I tried to use playwright to do it, but most of the sites I want to do it with open the pdf in a new tab and right now the playwright instructions can’t handle that.