There are a few ways to block apps on Android.

Method 1: Using parental controls

1. Open the Settings app.
2. Tap on Digital Wellbeing & parental controls.
3. Tap on Parental controls.
4. If prompted, enter your PIN or password.
5. Tap on Apps & games.
6. Tap on the app you want to block.
7. Tap on Block.

Method 2: Using a third-party app

1. Download and install a third-party app such as AppBlock or Stay Focused.
2. Open the app and create a profile.
3. Select the apps you want to block.
4. Set a time limit for how long you want the apps to be blocked.
5. Save your profile.

Method 3: Using a launcher

1. Download and install a launcher such as Nova Launcher or Lawnchair 2.
2. Open the launcher settings.
3. Tap on App drawer.
4. Tap on Hide apps.
5. Select the apps you want to hide.