Originally Posted by
HDQDD
cellular signal metrics, ability to modify cellular settings* (even field test mode was removed circa iOS11), ability to even view current (cell) signal strength (removed),
Field test mode is still there. I think they removed it in one version of iOS but it's been back for years now. Just dial *3001#12345#* <call> like always.
With my 16 pro it doesn't show as much as it used to, but still shows the basics