In Ventura 13.0.1, Apple removed (or Ventura removed) all of the Pages v12.2 Send a Copy options that allowed one to select the export file type and automatically attach it to Apple Mail. If you want to attach the document types that you mention, you must now go the cumbersome route of exporting, and then drag/drop that document onto a new Mail compose window.
There remains a File menu > Print > PDF > Send in Mail that opens a Mail compose window with a PDF attached. The File menu > Share… > approach just opens a new Mail compose window with the Pages document attached.
I wrote a two part AppleScript solution with instructions here: PAGES: Where did "share as pdf" go? - Apple Community that prompts you for your choice of export format, exports the document, and automatically opens a new Mail compose window with the exported document attached. It can be a single-click solution, whether a Pages document is opened, or you select one (via the script) from a File chooser.