Why are they listing Instagram and Snapchat as competitors to their native camera app? Neither of those are camera apps. Also listing competing apps is kind of

Why are they listing Instagram and Snapchat as competitors to their native camera app? Neither of those are camera apps. Also listing competing apps is kind of pointless when iOS doesn’t offer any way to change the default apps for any of these features? For example, I would like my own 3rd party Gmail app to open any taps on any links which are emails. But it doesn’t and there is no way to change the default. Same for maps. I want google maps app to be the default but there is no obvious way to do that. It’s almost as if apple is either skipping over the argument we are making on purpose or they just don’t understand the argument for allowing alternative app stores and changing defaults.