And for your second question jwst's near infrared and infrared spectrum allows it to see through gaz clouds and wayyyyy further in Space and Time than hubbles who's some kind of a giga dope camera, showing you basicaly what your eye would see through a lens as good as his.

Si it's not (only) a matter of communication because we only Saw the outside of, say, thé pillars of création. JW allows us to see it from the inside out !

Not only Can i assure you that it is a jwst image but i Can also tell you how to recognise them from hubbles : every shining star on a jwst photograph is surrounded by a 6 rays of light which are due to the hexagonal shape of its mirors. For hubbles i think it's 8? Anyway six is James Webb.