I’m not sure why Zwift Instagram says the ride unlocks the jersey. I’m fairly sure the ride doesn’t unlock a jersey but happy to see what others say.
Very often the ride puts you into the kit and sometimes it does unlock the jersey. However for the November Ride Series I think all that is available is a November Ride Series mission badge for doing all three team rides.
Information is generally available on this forum:
Or a very good website, especially for new Zwifters, for information is ZwiftInsider.