Website of ALPA-International is running an information-intensive page on the 5G deployment situation:
5G C-Band, NOT Cleared for Takeoff - ALPA
Also, from Politico's Transportation newsletter, the following (quoted verbatim) about the posture of the major airports organization w.r.t. the situation:
AIRPORTS AREN’T HAPPY: The Airports Council International – North America on Friday called the FAA's analysis "irrelevant,” arguing that the ripple effects of the deployment will hit the entire national airspace hard, including flight cancellations and delays. Last week’s deal pushed the 5G expansion date to Jan. 19, and AT&T and Verizon agreed to employ additional protections at certain airport zones until July.
“Despite eleventh-hour efforts to resolve obvious concerns that could have been addressed months ago, this attempt at a short-term fix does not address a number of critical uncertainties about the potentially adverse impact of 5G on certain low visibility approaches,” ACI-NA President and CEO Kevin Burke said in a statement.” This so-called fix will create winners and losers within the airport community, and the entire aviation system will suffer under the terms of this deal.”