Using a trackpad gesture is just as quick, easier, more spatially natural, and only uses one hand.

My left hand is not always on my keyboard. I'm not always typing. I'm not modelling 100% of my computer usage after "how to get RSI the fastest"; sometimes, I allow myself to lean back in my chair and just scroll the web, documents, photos etc. from time to time.

> Using a trackpad gesture is just as quick

Definitely not, many of swish gestures require you to move the mouse cursor to the title bar, which takes time, also holding a key and performing a simpler gesture can’t be slower than performing a more complicated gesture (which it needs to be to deconflict with regular mouse use)

Also many gestures have a delay built in so you can cancel or double down for a different functionally (close windows vs close app), so it’s slower by design.

> easier

It’s harder because you have to memorize more gestures and perform more complicated ones.

> more spatially natural

That makes no sense, the spatial movements are the same, can you give an example for resizing?

> and only uses one hand.

Yes, that’s the only potential benefit, unless, of course, your other hand is always near a corner, so it doesn’t matter

> I'm not always typing

That's fine, you don't need to type to have your left hand rest near the left near corner of the keyboard (it doesn’t even have to rest on the home row since you only need the corner)

> I'm not modelling 100% of my computer usage after "how to get RSI the fastest"

Well, you're, you've just moved your RSI to your right hand

Also hands have same length, so leaning back doesn't prevent leaving one finger on a modifier

Anyway, place your hands wherever you like them, it’s just that none of your arguments support it.