Yes, as per Wikipedia that happens much closer to us, at redshift 1.5: https://en.wikipedia.org/wiki/Angular_diameter_distance

(Note: the reason to measure in red shift rather than light years is that when this comes up it suddenly gets very important to be very careful about what exactly you even mean by "how far away is that thing?")

Yes, JWST can see as far back as 300 million years after the big bang.