I often find myself switching between multiple distinct tasks over the course of a day. For each of these distinct tasks, I have multiple Mission Control Spaces that I switch between.
For example, while I'm working on X, I might have an Excel window, then a PyCharm window, then a Finder window, then another Excel window. Then, when I'm working on Y, I might have an RStudio window, then a Chrome window, then a PyCharm window, then a Finder window.
Each of these is open to a very particular thing, and the order helps me cognitively by letting me maintain a model of "where things are physically".
My best solution so far is just to have lots and lots of Spaces, with task X being Spaces 1-4, and task Y being Spaces 5-8. The problem is that looking at Mission Control can then be incredibly confusing - so many windows, such small thumbnails. It's even worse when there's multiple monitors.
I would love to have a "meta-spaces" capability where I can switch between the Spaces for X and the Spaces for Y (and maybe also for Z, etc.). Ideally, this would be with a keyboard shortcut.