As someone who dual booted, I agree, don’t bother. If you’ve got any important files, back em up to a cloud or something, and wipe. Dual booting gave me so many issues, and eventually I broke my windows install somehow anyway. Just go with a full wipe, it’ll save you a Lotta trouble.
I’m not exactly sure whether or not this is good, but my gut feeling is that this sounds like it will very quickly become very annoying permission hell.