I am one of the PinePhone BraveHeart customers and ordered the phone only to have a complete Linux phone.
It will not replace my current Android phone, because among other things the WhatsApp or the Android app support is missing at UBports.
A "PinePhone Pro" with strong hardware and a working Anbox with UBports would definitely become my daily driver. Actually I only need 2-3 Android apps like many others, everything else works fine natively in UBports.
For that I would definitely spend more money like only 150 dollars.