We make an app that opens a google form with Google Apps Script. Users cannot fill out forms on Chrome browser on Android smartphones. However, it works well with Firefox or Opera on Android devices. There is no problem with Chrome browser on PC, Chromebook and iOS.
Here is the script to open a form:
var url = "https://docs.google.com/forms/d/" + formId;
var script = "<script>window.open('" + url + "', '_self').focus()</script>";
var html = HtmlService.createHtmlOutput(script);
return html;