We need open ecosystems then. When I started using a Sandstorm server, it became a method I could share access to things from all sorts of applications through a single interface... but all of the apps and the platform itself are open source.

But the problem with locking yourself into a proprietary platform, be it Apple, Google, or Microsoft, is that in order to use service A, that you like, you may also have to put up with services B, C, or D, which suck. For example, you might love Google Photos, but if alongside sharing Google Photos with your friends, you have to deal with Google's endless stream of terrible short-lived chat services, that seamless ecosystem platform isn't really doing you any favors.