Eating apple, cooking apple, cider apple, pig feed?
Granny Smith, Honeycrisp, Red Delicious? All apples, wildly different, all common. Even within the more commercially available variants there are significant differences: https://www.jessicagavin.com/types-of-apples/
Heck, just for cooking apples there are huge number of different varieties: https://en.wikipedia.org/wiki/Cooking_apple
Yea, "apple" as an idea doesn't really express anything concrete without lots more context.
And without more context, Apple may even mean something that isn't even a fruit, but still popular: www.apple.com