Sync Wi-Fi password from iOS to macOS? I've noticed that unlike on macOS, I can't access my Wi-Fi passwords when in iOS (only browser passwords are populated in my Settings → Safari → Passwords).

Is it possible to sync that Wi-Fi password (or all Wi-Fi passwords, doesn't matter) somehow from my iOS device to my macOS device?
Wi-Fi passwords are synchronised over iCloud Keychain and your iOS device will use stored AirPort network passwords when connecting to a Wi-Fi network. However, they do not show in Safari passwords since they are not for use in Safari. You cannot access stored Wi-Fi network passwords on iOS.