Why Fully Kiosk still reports the outdated Webview?

If you’ve installed the latest Android Webview and Google Chrome but Fully Kiosk still shows an outdated Webview version in the Device Info box (in Other Settings) your Android device likely has an AOSP ROM where you can’t update the Webview. The integrated Webview has another app ID com.android.webview than one provided by Google Play com.google.android.webview. Read this for more technical details. So the new Webview will be installed side by side but the old integrated Webview will still be used by Android system (and it’s app ID is hardcoded in Android OS). On rooted devices you can use this Magisk module to select another Webview. There has also been a discussion at Chromium with backgrounds why is it done like this. Sorry, this is something where Fully Kiosk can’t change anything. Please ask you device vendor for a Webview update.