I remember reading that a problem with wireless carplay was that when charging wirelessly the charge rate could not keep up with the drain (when using GPS and listening to music etc). Also phones got rather hot when wirelessly charging while using GPS.
So on long trips the Phoenix would slowly lose charge. Not sure how much of that is still true, or even still valid. It does seem a bit odd that now that CarPlay has become fairly common on new cars, none of the mainstream manufacturers (other than BMW / Audi) have picked it up. Many cars come with WiFi on upper trims. And they have corded CarPlay and wireless charging. In a competitive market, it certainly would make sense to add it to the top trim of a vehicle. Yet, manufacturers are not adding this feature despite it being available for years. Does make me wonder whether the reported problems are true.
(Side note - I'm in the market for a new car, but won't be buying BMW or Audi. In the winter remote start is an essential feature for me. And neither BMW not Audi have them. Something that's pretty mainstream now. I know you can get aftermarket systems but they don't allow setting the internal temperature remotely. Really wish we had more choices for wireless carplay).