It seems all the ESP32-X-MINI-1U form factor modules use the MHF3 / wUFL connector which is being discontinued by their manufacturers. Is MHF4 compatible with MHF3 or are there plans to switch this connector on these modules?

I'm having a hard time finding antennas that have this connector. Most use U.FL or MHF4.
Why on earth did Expressif decide to use a connector that has nearly zero support from vendors?
Will an MHF4 based antenna still work? I understand they have different depths.

+1 to 5Ghz! I can confirm I'm in for a few hundred.