I'd love to take advantage of this incredible tool in MacOS. Managing windows on MacOS is quite a challenge.
I sorely miss tiling WMs when I use MacOS; Amethyst and yabai just seem to big out all the time, lose track of windows, get confused by native tabs, and deal poorly with windows that force maximum/minimum sizes. I've concluded that MacOS's window model just really doesn't mesh with tiling. My current solution, after much experimentation with tools like Rectangle, Hookshot, and Spectacle, is to use Swish[1]. It feels sort of like an inside-out version of how I use Sway on linux. With Sway each window that I open is tiled onto the current desktop, then I re-balance the split or reposition the window with my mouse, and set the window to float if it doesn't cooperate. With Swish each window opens as floating, but by swiping on its title bar I can tile it into whatever position I want. This defaulting to floating works better on MacOS where the frequency of uncooperative windows is much higher than on linux. The killer feature of Swish for me is that it keeps track of the grid you make by swiping windows into place and maintains it even when you resize or reposition windows relative to one another, much like i3/sway. It's still quite frustrating though that I have to pay $16 for an app to make window management bearable. This is a basic OS feature that I've come to take for granted.
Have you ever heard of Phoenix? https://github.com/kasper/phoenix/. Despite googling around for this exact topic, with 3.8k stars I had never heard of it. Apparently someone has created slim, JS scriptable interface that is basically tailor made toward creating your own tiling WM. I just installed it and loaded one of the examples: https://github.com/nik3daz/spin2win. And what it does is basically ignores the built-in spaces and creates truly virtual desktops by just hiding and resizing windows. And it works pretty well. The response time between switching "desktops" is basically instant.