> if I turn off Lock Screen notifications and turn on time sensitive notifications then will I get no marketing notifications, and only notifications about my driver turning up?

It's up to the app developer, they get to mark notifications as time sensitive or not. So if someone decides that because a coupon is expiring soon it's "time sensitive" to ping you about it, then they can mark it as such. Hypothetically Apple could frown on this in app review, but it isn't something app reviewers are likely to be able to reliably catch.

Same is true on Android. Uber lets you disable annoying notifications in App or through settings because otherwise fewer people would use it.

I have my Uber set that way, and yes, I just get the driver stuff.

Uber eats though, I can never seem to get right, and it tries to spam a lot more. So I still agree with the original point

Uber Eats is the worst. In the app, Account > Communication is where they have you auto opted-in to endless promotional garbage.

Been there for atleast 4 years iirc