I think the Apple Vision Pro is a good example of why snapping makes no sense.
In this environment, your screen is basically the entire world around you, it can be as big as you want. Would you want to divide this into neat rectangles filling your entire view ? If your screen is that large, you basically size your windows to fit the content and then arrange them spatially into something that makes sense to you.
The desktop isn’t that different, but it’s limited by the size of your screen. This urge to divide the entirety of your screen up into rectangles with zero breathing room between them is not because that’s the most natural way of organizing your windows, it’s a way to deal with lack of space.
Say you’re organizing your mail on your physical desk. You’re making different stacks. Bills, taxes, junkmail, etc. Are you going to put these stacks right next to each other ? No, you’re going to leave some room between them. In fact, it would be really annoying if you had so many different stacks of papers on your desk that you had to put them next to each other filling the entire surface. It would feel way more chaotic.
In my opinion, tools like a maximize button and window snapping are trying to solve the wrong problem. You’re trying to maximize usage of the space you have, because you have too little. The real solution is to get more space, i.e. get a larger monitor. You don’t need window snapping or anything like that if your monitor is big enough, and you can just size your windows to fit the size of their content and place them wherever. In fact, on a large monitor window snapping makes zero sense.