In any case I'll add another anecdote for someone that has nearly the identical setup to the GP and will say it also significantly increased my productivity. Don't really care if anyone believes me.
But how? What were you doing that involved window placement or positioning that "makes you more productive"? I just don't see how these activities, in the context of doing day-to-day work, could shave off more than a few minutes a day.
"Significantly" implies to me some double-digit percentage increase in the ability to accomplish tasks, and I just can't see how a window manager could possibly be responsible for such a thing.
What is rarely taken into account is that offloading mental energy can lead to better solutions.
For example, I make two paintings. Both take me ten hours, but for the second one I was sitting in a more comfortable chair, in a calm room, and the resulting painting is significantly better.
Less friction might not manifest as a big numerical statistic that you can look at and nod your head in approval, but it might do wonder for the internal levels of stress one feels in interacting with devices. And ultimately, that's what matters most.
On my mac the desktops constantly change position for unknown reasons. Managing windows is a huge pain on each desktop because it's very easy to obscure them... there is also a ton of wasted space with so much gui noise. CMD tabbing through apps is tedious and inflexible.
I posted some screenshots of my Linux setup in a different comment. My Linux workflow is night and day. All of my projects are streamlined on their own workspace, I can jump between tasks with no mental effort, everything is at my fingertips, I make less mistakes (working in the wrong terminal or editor), everything is done with vi bindings, etc. I have custom shortcuts set for things I need and I have multiple browsers that I can overlay on any workspace if I need to.
I can't quantify my productivity increase, but I know it's there. I also know I'm much happier when I'm working now because I'm much more organized and focused. I'm also not dealing with a Laptop (Macbook) that sounds like a rocket about to take off. My Linux box operates under 1% CPU load all the time. My point is not to say my setup is better (I'm not an evangelist on these things), but that I found a huge productivity boost for my needs with a minimal setup. I was very skeptical when I started out and it was a combination of being out of my comfort zone and being incredulous to a radically different way of using a computer.
1. You can change the setting so that workspaces do not change their position/order. See: https://apple.stackexchange.com/questions/214348/how-to-prev...
2. The third party app “alt-tab” provides an alt tab experience that is much better than the native one, and is likely more similar to the behavior you expect from Linux. See: https://alt-tab-macos.netlify.app
I also personally like to use Rectangle for window positioning using keyboard shortcuts, tried the various auto tiling solutions like yabai and amethyst in the past but I think the flexibility of Rectangle is worth having to remember and use a few keyboard shortcuts.
I think it’s unfortunate that so many third party apps are required, but with a bit of babysitting MacOS can be pretty decent to work with.
Think of a cluttered workbench in a garage versus a clean and organized one. I don't need a scientific study to tell me which one is more efficient.