After the March security update, users of the Pixel 3 phones are reporting stability issues with their camera apps. The app apparently lags heavily and tends to completely glitch out during use. This, of course, begs the question of what exactly the Pixels are good for if their cameras are unreliable.
https://www.notebookcheck.net/March-update-messes-up-the-Google-Camera-app-leaves-Pixel-users-in-the-lurch.413806.0.html