Amazingly, they also offer official AOSP builds (https://developer.sony.com/develop/open-devices/latest-updat...). LineageOS is also supported on the Xperia Z5 Compact. GApps optional for the privacy conscious.

Remove Google, add iOS and I consider it. (privacy…)

Yeah but then you've got to use an xperia phone.

This will probably be my next phone. I have a Pixel v1 right now and unless the Pixel 3 impresses me a lot I will be moving over to a Sony Compact. All the features I want (including a headphone jack and large battery) in something that isn't a mini tablet.