Nothing really! Saving one or two clicks for people that can't bother to learn any UI. The true automation I needed which leads me to leave macOS is workspace arrangement. Now I'm using Sway on Linux and I now that Super+1 is Emacs, Super+2 is the browser, Super+3 is where the terminals are,... Typing the same shortcut again brings me in the last workspace. And no sloooooow animations in the way.
You can set all that up on macOS and disable animations.
This stuff is readily available in the macOS ecosystem, but I don't fault anyone for jumping ship for these reasons. It's the same reason I did, before I figured out how to do it in macOS land by way of being required to work on macOS anyway.