Previously, some Google Pixel and Pixel XL users complained that their handsets are getting frozen randomly and it the device becomes unresponsive for a few seconds to several minutes. The issue led to long discussions in the official Pixel User Community forum.
According to some users, a third party app, Live360 Family Locator is causing this trouble and simple installation of the app can kill the problem. However, some users continued to experience the issue even without having the third party app. Further, some users pointed out that cleaning the cache and factory resetting the device does not solve the problem either.
It seems that the issue is both software-hardware related. Some other issues that are reported against Google Pixel phones are bug issue, audio issue, and double tap to wake bug issue.
We should mention that most users are still happy with their Google handsets and only a few numbers of users are experiencing these unfortunate issues. If you are experiencing this problem then contact Google Pixel support.