2. In the Calendar Inbox, allow select all, or have the "OK" button at the same location so I don't have to click 400 different times at 400 different screen locations to empty the thing. I just ignore it now, it's less than useless. Also show a sidebar with event details in Week/Month view.
3. Make Reminders a Real Desktop App vs. a horrible iOS. port. At least drop the tiny little (i) info icon, and show all the info for a reminder on a sidebar to the right.
3. Get rid of the Apple Music app. Fire everybody who approved it. Bring back iTunes. It was a bloated mess, but somehow better than the horror-show that is Apple Music. At least put the controls back at the top of the screen, and allow me to have playlists default to list view. Also, get rid of the "Cover Art Area" that takes up half the screen, and I don't want, and has redundant playback controls. Make the text in the what's playing be adjustable size so I can read it. Maybe obey the System Accessibility settings?
4. Get rid of the System Settings app. Fire everybody who approved moving that garbage to macOS. Bring back System Preferences.
5. In Software Update, drop the tiny little (i) info icon and just show the what updates are going to be installed inline.