Using 1Password for Android 7.7.2.beta-1 - I've noticed if I have been using 1Password, but it's since been backgrounded, when my battery saver kicks in at 15%, 1Password randomly pops to the front (regardless of what other app I was in).
1Password Version: 7.7.2.beta-1
Extension Version: Not Provided
OS Version: Android 9
Sync Type: 1Password