Not so! I'm sure they're great for a bunch of usecases but they don't fit mine, which tbf is probably not very common.

I've got an ultrawide monitor, 32:9 aspect ratio, and I like to have three columns, with the middle one being basically 16:9, and the right being fairly narrow, so that the left can be somewhere perhaps slightly wider than 4:3.

Regular tiling positions aren't flexible enough for that