Mathy Vanhoef, the researcher who discovered the KRACK vulnerability and therefore the most authoritative source available on this subject, removed any ambiguity in a video interview for Tech News Weekly:
As a home user, if you've done update on your Windows, and your IOS devices, in that case I would say you're secure.
When you connect to a more enterprise or a more business network, for example a University or a company that has a lot of access points, so a lot of places were the wireless technology is being broadcasted, then there could still be a perk in the equipment that they use.
But, for your home network, if you just update your Windows, or your laptops and your smartphones, then you're already safe.