I feel like it's only partially debunked. Ok, not all messages are searchable this way, but from the Google Voice interface I can't find anything that says if

I feel like it's only partially debunked. Ok, not all messages are searchable this way, but from the Google Voice interface I can't find anything that says if it's searchable or not, or if it's searchable when sharing by email or embedding in a page. It's not very clear to me.