If you cryptographically sign the session cookie, as suggested in the video, then you accomplish the exact same thing as a JWT token - so, then why use JWT at all, if you going to look up the session data from the database in any case.
JWT was meant to be stateless, if it's not, then it's just a layer of unnecessary complexity with potential security and implementation flaws.
JWT was meant to be stateless, if it's not, then it's just a layer of unnecessary complexity with potential security and implementation flaws.