After few trials, this is the most productive setup for me. Is there a Mac app that lets me arrange my desktops vertically? It's there for Linux but couldn't find an option for mac.

you could do that in the Displays app right?

Thanks! Never thought of that. Done.

I had same setup previously, but after a while I didn’t find it very productive. Left-Right setup has been working for me very well now. This setup required up and down head movement, which could turn out to be tiring. Left-Right setup require least amount of movement.

For me, the mac trackpad is irreplaceable, for pure designing I prefer the laptop layout over Keyboard/Mouse.