The cheaper filters you can find on amazon look almost identical to the mopar filters. I have no idea what the micron rating of either filters are as it is not listed, but they look to be the same, just don’t have the mopar logo or part numbers on them. Eco guard is another option, but I haven’t had a chance to pick one up yet.
My local dealer also mentioned a fuel filter shortage, so they are using filters from part source at the moment, and these are identical to the mopar filter but are stamped part source rather than mopar. Still a pretty expensive filter, even with a business discount.