Windows Account Sync Known wifi Network at Device level

Thank you! I can find very little information about this and it's a huge security risk and privacy concern. We are seeing users across the company gaining access to the login information of private home wireless networks (including passwords!) of other users and it's unacceptable, and there is no clear way to disable this. Maybe turning off the Windows backup for "Accounts, WiFi networks, and passwords" will work, but I assume this then forces us to disable the password keychain and other helpful features?

Why? Why on earth is all of that lumped up under a single checkbox? Why isn't there at the very least a registry key to let us disable just the wireless network syncing? Why are wireless networks and passwords being shared with and accessible by every user to begin with and not just the user who added? Does this mean all of the other backed up information under that checkbox is also accessible by every user on a device?

Microsoft's implementation of this has created enormous risk and vulnerability for any workers who share devices other people, and judging by the sparse amount of discussion I can find about this concern, I think most people don't even realize it.

I fail to understand how anyone at Microsoft could have considered this to be a good idea, especially since they like to portray themselves as so security conscious.