I agree with the sentiment of this comment. I think you're articulating what I perceive as feature decline particularly in the GUI interface. Advanced features

I agree with the sentiment of this comment. I think you're articulating what I perceive as feature decline particularly in the GUI interface. Advanced features seem to be disappearing and unless I'm using terminal, I feel like my machine is increasingly operating with settings and parameters I can't access, customize or eliminate (iOS analogy: non-deletable apps, obscure OSX example cmd-ctr-option-8 used to invert screen colors, this is now default off and only if you know its a feature you can enable can you use it). Huge UI bugs in OSX not previously present are update alerts that cannot be eliminated and will overlay full screen presentations and videos until closed, there's also no way to turn this off, same is true for time machine backup notices).