I am also not looking forward to the system transitioning from "big experiment, burn money to make it good" to "established business unit, tweak it to death for incrementally more money / personal promotion." We're still in the honeymoon period and I very much expect to hate Waymo in 10 or 15 years when they reach a steady state.
enshitification should be a new certainty along with death and taxes
What levers are there, really? Waymo has a monopoly and it seems like they will for a while, so they have a lot of power, but all I really see them doing is making it expensive. Anything that makes the experience worse takes away from their ability to take market share away from Uber/Lyft.