What is Google's Universal Commerce Protocol and should my restaurant care?

It is a way for ordering platforms to let customers order food inside Google. Google only invites platforms to join a waitlist so far, and says details are 'coming soon'.

• Google's page invites ordering platforms to join the waitlist. Onboarding details are 'coming soon'.
• Google says the merchant stays Merchant of Record and keeps the customer data and relationship.
• Google's Actions Center lists three food ordering types: Redirect, UCP and Offers.
• As a restaurant you cannot sign up yourself. It is for ordering platforms.
• For now, put your own ordering link on your Google Business Profile.