HI, for everyone having issues with Square Appointments, the new pricing structure started April 26, 2022. You needed to select an appropriate plan.
The new pricing plan does NOT include Google Calendar Sync on the FREE Plan.
Square Pricing Plan Announcement
https://www.sellercommunity.com/t5/Product-Updates/New-Square-Appointments-Pricing-Plans/ba-p/334905
Square Appointment Pricing Plans
https://squareup.com/us/en/appointments/pricing
Thanks for sharing this information:)
Square Community
Square Products