It’s kinda buried way at the bottom of Tesla support page in the FAQs: (
Connectivity).
What vehicles will continue to receive Standard Connectivity at no cost?
All new Tesla vehicles ordered on or before July 20, 2022, will have Standard Connectivity features at no cost for the lifetime of the vehicle (excluding retrofits or upgrades required for any features or services externally supplied to the vehicle – e.g. telecommunications network).
My SA did confirm that any orders placed before 7/20 will have free life of vehicle Standard Connectivity. But then, nothing stops Tesla from removing that language someday and claiming it never said that.