[Info]: Pages v13.1 handling of SVG artwork
With Pages v13.1, one can drag and drop SVG artwork onto the document. When you do this, Pages will also internally create a PDF copy of that SVG artwork. On Pages v13.1, the image you see in the document is the actual SVG, and if the document were opened in previous versions of Pages that do not support the SVG format, that PDF will be used instead for backwards compatibility.
However, you want to use these SVG images sparingly as your Pages document size can expand rapidly. For example, I dropped a 22K vector SVG onto Pages v13.1 and it made a 162K PDF. Any transparency in the SVG content will be lost when converted to PDF. By comparison, converting that same SVG using the command-line version of Inkscape resulted in a 20K PDF document.
Tested: Pages v13.1 on macOS 13.4.1 (M2 architecture).
Mac mini