How do you stop Android from opening?

Disable Instant Apps

Open Settings and go to Apps & notifications and select Default apps under Advanced. On some phones, you will find this under App Management. When you find Default apps, tap on Opening links on that page. You will then see Instant apps on the next page, turn off the toggle next to it.

Why do apps keep opening on Android?

Using Battery Optimization. icon that’s usually in the app drawer. If you have Marshmallow or later, you might have apps that start randomly due to a lack of battery optimization. This method helps optimize apps so they stop starting automatically.