Nobody has level 5. Waymo did 5 million miles in 2024 with nobody behind the wheel. Tesla did way more but required a human driver due to frequent disengagement. These are not the same. https://electrek.co/2024/09/26/tesla-full-self-driving-third...
Level 4 is a commercially viable product. Mapping allows verification by simulation before deployment. Tesla offers level 3, which is not monetizable beyond being a gimmick.