Hello! I see you're having trouble finding Arena Breakout in the App Gallery on your Android 10 device. Let’s see what might be going on.

Often, when an app like Arena Breakout isn’t showing up in the Huawei App Gallery, it could be due to regional restrictions or the app may have been removed temporarily for some reason. Arena Breakout is available officially on Google Play Store but may not be published on App Gallery for all regions or devices.

Here are a few steps to try:

1. Check your App Gallery region settings: Sometimes apps are only available in certain countries. Make sure your App Gallery region matches a region where Arena Breakout is offered.

2. Try installing from Google Play Store: Since your device is Android 10 with WebKit browser, you should be able to access Google Play. You can find Arena Breakout directly there here: Arena Breakout on Google Play.

3. Use a Huawei Phone Clone or alternative ways: If you have access to a device where the app is installed, you might try using Phone Clone or a similar app to transfer it.

4. Use a VPN temporarily: Sometimes using a VPN set to a different country (like the US or Singapore) allows the App Gallery to show apps available in that region.

If you’ve tried all these and still have no luck, it is possible the app is currently not supported in App Gallery on your specific device or region.

Let me know which step you’d like assistance with or if you want me to guide you through installing it via Google Play Store! Are you able to access Google Play on your device now?