A small local business's profile account got marketing mail from Google encouraging the business to sign up to try Bard. I've never seen Google mass mail to business profiles outside of the time they tried to get everyone to join their astroturfed anti-regulation group to complain about antitrust law.
It's so shockingly rare for them to use mass mail to advertise a new product, especially one that's in such an early stage, that it seems incredibly desperate to sell the narrative "We can AI too".