Hello.
I have been an iPhone user since the 7 model and I'm very satisfied with it.
I'm currently at my 4th iPhone, specifically this 16 Pro Max, and I was very excited about the telephoto lens, being this my first pro model (I shoot many high quality videos with the phone itself).
That said...
If you select the telephoto lens (i.e. 3x in the camera app) iOS doesn't always use that lens - it sometimes uses the wideangle (1x) lens and crops. The resulting photos are truly awful - they look like they were taken with a potato phone.
See e.g. the two photos attached (straight out of the...