We've got 61,000 km on our Model Y. A small majority of the mileage is on the original tires, and the rest on our winter tires. Lots of tread left on both sets.
Want your tires to last? Don't drive like a moron.
I do know a couple of Tesla owners who had to replace their tires at 10,000 km. (7,000 miles). They learned their lesson and their second set is lasting a lot longer.
Want your tires to last? Don't drive like a moron.