No one commented to the FCC about interference with strong enough language to put on the brakes.
No one has flown an approach to landing past several 5G systems with a picture-in-picture view of the radar altimeter readout going haywire.
There are different manufacturers and generations of radar altimeters that will have differing degrees of interference rejection.
If 5G systems could be charted with warnings rather than shutdowns, possible interference could be assessed first. Shutdowns at Class B, C some D and military airspace approaches might be necessary until the assessment is completed.
On the lighter side of flying: