I just recently tried to create an Android app with just a "simple" web app container with offline support. Turned out it is almost impossible job when you have zero knowledge of Java. I thought I just create a webview like in Electron app. How wrong I was..
Another bad development experience with Android was when I tried to debug simple web app manifest with Chrome for mobile in Android simulator. Turned out there is no Chrome in the simulator. So only way to debug would be to buy an Android. Thanks Google!