The Pixel 3 series of phones is now linked to overheating, leading to complete shutdown, in new reports. Many of them claim that their units do this while charging, whereas one or two assert that it happens while doing tasks such as using the camera. Google has yet to act on this new issue with their latest devices.
https://www.notebookcheck.net/Pixel-3-units-reported-to-shut-down-during-use-due-to-overheating.358331.0.html