Android Chrome to send notifications asking to use Chrome - 9to5Google
Based on our reading of a series of code changes, we believe Google Chrome for Android will send you a notification if you haven’t used Chrome in a while.
Digging a bit deeper, we found what specifically would trigger Chrome to send one of these notifications. If you indirectly open Chrome by opening a “Chrome Custom Tab” in an app, Chrome will take that opportunity to check how long it’s been since you’ve used Chrome. Then, if you have more than one browser installed, you’ll receive a notification suggesting that you use Chrome.