It's only the surface-level of an ride-hailing app that seems easy for worker-owned cooperatives to create. In reality, the extra expensive programming dollars required to tame the hidden complexity so that the app can present a seamless experience to the customers/passengers is a huge factor that works against co-ops.
E.g. see the famous Uber comment on the complexity of the app: https://news.ycombinator.com/item?id=25376346
Real-life customers don't want to enter their credit-card details into City_X_driver_coop and then re-enter their financial details multiple times again into City_Y_driver_coop. Even if you imagine a hypothetical national co-op to consolidate multiple cities, customers would still then have inconvenience of Country_X_coop and Country-Y_coop.
It takes a lot of capital to pay programmer salaries for desirable features that customers want and since co-ops are capital-constrained (by definition because they can't take millions in investors money), the app will always have less features compared to Uber/Lyft.
That's the financial constraint that causes co-ops to more easily organize in lower complexity businesses such as local grocery co-op or a farming coop. But a high-tech complexity business that's expensive to build is inherently too costly for a pool of drivers' savings to fund.
Whenever you see the phrase "worker-owned", mentally substitute "capital-constrained" -- and it starts to make sense why many businesses domains don't have any coops rising up to compete with VC-fueled startups.
EDIT to reply: >Driver co-ops or smaller operators simply don’t need to worry about half the nonsense in the comment you linked
Sure, the driver co-ops can choose to not spend capital on "useless" features but this leaves out the fact that customers can also choose not to use the co-ops because of the lower quality app experience. Keep in mind the behavior of customers who prioritize conveniences.
E.g. the non-profit RideAustin app fails customers even after Uber/Lyft left Austin: https://techcrunch.com/2017/03/12/austin-is-fine-without-ube...
It takes capital to build tech solutions that deal with peak load. And RideAustin later shuts down in 2020: https://www.google.com/search?q=rideaustin+shuts+down
Well, one might say RideAustin was hampered by coronavirus lockdowns. That's true, but it also takes capital to get past an economic downturn of low revenue. Uber/Lyft got hurt by COVID as well but they had more capital reserves to deal with it.