Also if I were to shop for a smart phone, I'm interested to hear any perspectives on whether there are considerations of possible competition between prioritizing digital sovereignty (which I think phones are generally bad at, with maybe a few outliers) and prioritizing strong privacy protections (which I suspect the more mainstream phones might handle more robustly)?

Talk to me like I'm someone from 2003 who has never seen a smart phone before, because that's essentially what I am.