As mention before my main reason to switch to Linux was to escape from all the proprietary, controlled environments, services, tools and software that we all become depended on over decades of computing.
In the beginning OS X was open and fun, finally a *nix system with a usable applications and GUI! All that changed with the arrival of the iPhone and later iPad resulting in a closer coupling with iOS. Don’t get me wrong OS X is a still a solid operating system for those who enjoy Apple’s vision of the ideal desktop. It offers access to pro-level applications that many companies rely on. However, after 15+ years Apple’s Walled Garden is no longer the most practical operating system for my standards development and photography workflows.