Android Webview not rendering the headers of SharePoint page

The screenshots show the SharePoint suite header in Chrome but missing inside Workspace ONE’s Android System WebView. That points to the host environment, not the SharePoint page. Microsoft’s current guidance says no Android browser is officially supported for Microsoft 365 for the web and recommends Microsoft 365 Android apps; a managed third-party WebView is therefore outside the documented support boundary. Update Android System WebView and Workspace ONE Web, then confirm JavaScript, DOM storage, cookies, redirects, and pop-ups are allowed by policy. Compare the WebView user agent and network trace with Chrome, especially failed authentication or static-resource requests. Reproduce with the same account in current Chrome and the SharePoint mobile app. If both remain correct, use one as the supported path and give the screenshots plus WebView logs to Workspace ONE support. Microsoft cannot guarantee the full SharePoint shell inside that embedded browser.