I just upgraded to the Pixel 8 Pro when the Pixel 5 went out of official support. The screen fingerprint reader works fine. Where it is flawed is that it's not as quick to unlock from the front. I'm looking forward to the greatly improved support period. Three years was ridiculously short. I know something like GrapheneOS is always an option, but I'm hesitant to do so when I don't have a backup phone.
The Pixel 8 Pro has been treating me well. Great photos and video, snappy UI, good feature set. And it sounds like I'll be getting feature drops for the next few years, so that's nice. The battery life is good. I added on Peak Design's case and mini tripod, so I can quickly set it up on a surface to take videos or make a video call.