If you recall, there was an explosion of self-driving car efforts from startups and incumbents alike 7ish years ago. Many of them failed to deliver or were shut down. [1][2][3]
Article about the difficulty of self-driving from the perspective of a failed startup[3].
Waymo came out of the Google-self driving car project which came from Sebastian Thrun's entry in 2005 Darpa challenge, so they've been working on this for more than 20 years. [4][5]
[1] https://www.cnn.com/2022/10/26/business/ford-argo-ai-vw-shut...
[2] https://en.wikipedia.org/wiki/List_of_predictions_for_autono...
[3] https://medium.com/starsky-robotics-blog/the-end-of-starsky-...
[4] https://stanford.edu/~cpiech/cs221/apps/driverlessCar.html
[5] https://semiwiki.com/eda/synopsys/3322-sebastian-thrun-self-...