There are basically 2 problems with keyboard on Android.

1. Keyboard always pops up on pressing the screen. It does not matter if there is and element or not, you tap any place on the screen and the keyboard pops up.
2. It does not work with QML TextField even when it's focused and there is a keyboard popped up, you try to type anything and it's not typing, the field remains empty.

I attached the minimal example of the application where I experience these issues.

After I built this example for WebAssembly, I deployed it to my server to test on the Android in the Chrome browser. I've also deployed the app on a free hosting real quick so you can test it asap: https://hopeful-jellyfish.static.app/webasmandroidkeyboardbug