I always keep the Dock hidden, even on my 2560x1440 iMac. I launch applications from Spotlight¹ and switch between them by +tab. About the widescreen aspect r

I always keep the Dock hidden, even on my 2560x1440 iMac. I launch applications from Spotlight¹ and switch between them by +tab. About the widescreen aspect ratio – I'm fine with it. Feels more natural. A 4:3 screen looks like a square. I don't have square vision. Then again, it's true that less than 800 pixels of vertical space feels somewhat cramped, and purely for web browsing / reading, 4:3 makes sense, and 3:4 would make even more sense. Personally I do much more and the widescreen is better all-around compromise. Two fingers + inertia makes scrolling pretty enjoyable. ¹) Quick enough on SSD'd machines, otherwise a bit slow. Luckily I rarely launch apps. I just keep tons of stuff running in different Spaces.