But wages and benefits have no actual dependency on scheduling

This is only loosely true. If companies must pay a stable hourly wage, then they’re going to want stable continuous labor for that. As of now, drivers are paid for each job, which creates a lot of flexibility for both parties. If that becomes illegal, Uber Eats etc. isn’t going to want to pay people to sit around in between jobs. It also allows them to explicity direct a driver to do a certain job rather than offer a job to a driver.

It’s fundamentally a pretty different dynamic. Some people might find it preferable, others won’t. There’s some nuance here