Earlier quoted context omitted.
I think the blame has to lie with Lexus. My current phone is an iPhone and my previous phone was a Pixel and both work perfectly in my Subaru, although the head unit was replaced 3 times because it was triggering some type of SOS signal to Subaru. Frankly, I've had fewer BT issues with my iPhone than I had with my Android phone, but the Android was from three years ago and I think things have probably improved since…
I haven't driven for a few years but my iPhone 4 always used to connect and work with my Peugeot 307 perfectly.
Not sure why they don’t use CarPlay but maybe some people prefer Bluetooth.