As discussed in the thread above, you can pull data from the page’s type if the page has a type.
This makes sense, as the reason you’d want to have dynamic page descriptions is because the page represents a unique thing. Like, u have a rental listing site and the page in question is “view-listing”.
That page would take a listing as its type. And, you’d want the title to be dynamic and such (you know: “Fawlty Towers Listing Page” as opposed to “Happytimes Villa Listing Page”).
Same for the metadata.
However, if the page DOESN’T have a type this makes no sense. The title and other meta data are never different right? They COULD be different based on the Current User (Which is why you see that as an option, but of course it’s meaningless in the context of Google bot visiting your page right?)
You may have designed your page in a very non-bubble way and didn’t realize your page about things of “type x” should itself have a type of “type x”. (This makes life much easier than passing URL parameters.)
Fix that and you’ll have all the options you need.