I have a cheap USB microscope, but this year I got a Pixel 7 pro. It is almost good enough in macro mode to get trichrome pics. It does use AI to retouch the fine details, so the zoom is a little weird, but damn, getting pics this good from a phone is amazing to me.
My phone (android) takes decent macro shots as well, but I have to keep the zoom at 2x or it disables it.
On the middle bottom of the camera screen, it shows a tiny pic of 2 leaves. 1 normal, and 1 with the veins on the leaf for macro.