A week old, but Google might be working on a “Repair Mode” for Pixel phones. The feature would allow to securely isolate your data while your phone is being repaired at a service center without needing to do a factory reset, by booting a Generic System Image using the Dynamic System Updates feature that was introduced with Android 10.
A week ago I got my phone screen repaired. The best current workaround for this is to enable profile modes and enable Guest Mode. They can’t access anything else on your phone this way and can still test everything.