The product people actually pay for is one bill and one API key. Routing is the marketing. Switching models without opening a new vendor account is the thing I use it for.
Took them long enough. Desktop Firefox is still the only place I can run real uBlock. iOS was the hole. Native is better than nothing, even if it's still WebKit under the hood.
I do this. Bought a used 2023 S with HW4 last year. A few thousand miles in and I let it drive most trips. Still watching the road, but the car is doing the work.