There must be something wrong with my battery. Google Messages might be the source of the problem.
Although certain software is notorious for using a lot of battery power, you don’t expect it to come from one of your phone’s most important application
According to Reddit and 9to5Google, a new Google Messages version has an issue that sometimes keeps the camera app running in the background
The camera in the chat window of Google Messages allows you to immediately attach photographs and videos to your message