I've tried most of the common options (with the notable exception being the vastly overpriced Librem 5). The best option IMO is the OnePlus 6 or 6T (they're almost identical) running postmarketOS. It is much faster than the PinePhone Pro with way better battery life and has proper modern GPU support (OpenGL up to 4.x, Vulkan). The main thing preventing daily driving the OnePlus 6/6T is that the earpiece audio doesn't always work for calls and that it won't wake from sleep when an incoming call comes in. The PinePhones are better to use for voice calling, but slower, lacking many graphics APIs (no Vulkan, limited OpenGL), and have much worse battery life. The camera doesn't work at all on the OnePlus phones yet, it is starting to work on the PinePhones but the picture quality isn't all there.

At the moment I have both a OnePlus 6 and 6T, but I have stock Android on the OnePlus 6 and postmarketOS on the 6T. I use the Android one as my daily driver with my primary number SIM but got a second cheap Mint Mobile SIM for the postmarketOS one for experiments and mobile data. I prefer browsing on the postmarketOS phone, and I use it for VPN, SSH access, file management, and some coding on the go which are things Linux phone excels at over Android. I mostly use the Android phone for calls, texts, camera, maps, email (GMail), Discord, and casual browsing. If they fix the earpiece audio issue I would probably be fine daily driving the