Meta's Muse is gaining a potential toll booth on online checkout, which squeezes Booking and Airbnb. Within 48 hours Shopify, PayPal and Expedia joined Muse checkout, since each merchant has reason to join early if agents steer demand. For Booking and Airbnb, joining could mean paying fees on bookings that would have come direct anyway, about 90% of Airbnb's traffic as of Q3 2023; staying out bets booking habits won't move to Muse. No deal has disclosed economics, the number to watch. x.comÂ