In case you haven’t realized, I’m using the Apple Ecosystem v26 beta on all my devices - except my watch, which doesn’t need the battery drain. While sniffing around the macOS Photos app, I found this submenu buried in a context menu, and its functionality seems . . . oddly specific. Isn’t this kind of export function supposed to be relegated to an Open in… option?
I think it’s trying to signal the feature is available, hence the App Store CTA