antenna

Gripping the phone differently in different ways also doesn't seem to matter at all, because as far as I can tell, the antennas aren't really changed.

Literally, the whole body of the phone is metal now with glass cutouts at the back for wireless charging, and then at the top for those millimeter wave antenna.

Humanity has a long and storied history of driving stuff into the ground so it will stay put, from the small to the massive (like the earth anchors used to hold guy wires for antenna masts).