According to the ESP32 Hardware Design Guidelines, a 0.1uF cap should be added to the SENSOR_VP and SENSOR_VN pads when using them as an ADC. Why is it then that the subcircuit schematics shown in the document don't include it? The Sparkfun ESP32 Thing schematic also doesn't include the 0.1uF cap in their design.
Another curiosity, why does it show these pins as part of the RF matching circuit? Can we not use the SENSOR_VP and SENSOR_VN pins for ADC if they're part of the RF matching? And in what way do they contribute to the RF functionality?