update: The 2x2 snapping is called "Corner Snap". There are two features that make Corner Snap more useful:
Figuring out how to use these features made me reconsider the desire to disable Corner Snap, so other users might find this useful, too.
WIN-UP and WIN-DOWN are two keyboard shortcuts I use very frequently. However, I wish they behaved like they did before Microsoft introduced 2x2 Snap in Windows 10. I switch between maximized, minimized, and half-screen quite often. However, I almost never use the intermediate 2x2 snapping states. (Here's more info about Windows Snap.)
Is there a way to disable the intermediate 2x2 snapping states? I would like to keep the other snapping behavior. Ideally, the 2x2 snapping would only be activated with a modifier key like SHIFT-WIN-UP.
This registry key might be related, but I could not find any documentation for it: