Just use the App Store. Very few OSes as privacy respecting as iOS, certainly not we-pretend-to-be-open-source Android.

No joke. Google Play Services isn’t even available on iOS.

None of them require Google Play Services if you use their iOS app.

Buying household groceries or anything of size sounds annoying or impossible on bike.

Not sure why buying groceries on a bike would be annoying or impossible. I do all my grocery shopping by bike, every single day, sometimes twice a day. Just bring a backpack.

As for ‘anything of size’, what would you need to transport? I still have a car, but I use it so little that I only need to buy gas maybe once or twice a year.