The removal of window chrome was a gigantic mistake and we're all paying for it every day. Having to tolerate the extra mental overhead caused by the removal of such affordances in UIs every single time I use a computer makes me wonder whether we're all actually dead and in hell... Like that old SMBC comic where a guy in heaven stubs his toe every hour, and realizes it's actually hell. That's what this is.
And don't get me started on OS updates...