You're still tring to convince me of the 13.8 billion year age of the universe. You can't. I know it's not right. The universe is closer to 250 billion years old but there is no way to determine that with a telescope from the earth.
Seeing an object that is 13.8 billion light years away just means it is 13.8 billion light years away from us. That gives you no real indication of the age of the universe.
The James Webb Telescope will not be able to see anything more than 13.8 billion light years? It will but if you're just going to throw in the rate of expansion of the universe, as if everything is moving away from us since the bb (which is all totally incorrect) then you're never going to get it right. I don't know how far the JWT can resolve but I doubt it's over 47 billion light years.
Once again, that 45 billion corresponds to a light travel time of 13.8 billion because of the expansion. So, if we focus on light travel time, as opposed to current proper distance (do you understand the difference?), there should be no problem.
There will be NOTHING that has had a light travel time over 13.8 billion years.