@markkdark also waiting for a decent phone size to use with Linux myself.
Currently, I use a Fairphone 5 only because size is its only negative aspect. Apart from size, it has upgradeable battery and storage, decent performance and very good camera. As soon as there is another option at around 6 inch ready for Linux, I will sell this tablet from Fairphone.
@cyberwolfie I used postmarket with phosh interface on it for a month. I am impressed with its stability and overall experience. Most of drivers are already out. Is even better supported than Fairphone 4. However, it has no audio support. No microphones or speakers are working ATM. You can use sound via Bluetooth or USB for now.
Once it gets audio support I will get back on pmOS. Until that, I am also daily driving calyx on it.