If you are missing your alarms, this Google Clock bug is to be blamed 

It is being reported that it could be due to the underlying bug that was a part of the Google Clock v6.4 update that was rolled out in March 2021.

If you have not been able to wake up on time, your Google Clock bug is to be blamed. It has been reported that a bug on Google Clock app has been causing issues on the app and making it behave weirdly. Several users have reported on Reddit that their alarms are not showing any notifications on the app and causing users to miss pre-set alarms. The issue was reported mostly by Pixel, Oppo and OnePlus users. As per the Android Authority report, many users gave one-star ratings to the Google Clock on App Store. One of the users also wrote about the issues he is facing with Google Clock app on Reddit.