Old version of webview on Android device causing problems

[wekas]

I have updated the android system webview and google chrome to the latest version via the google play store.
However my app states the following userAgent:

Mozilla/5.0(Linux; Android 6.0; C72 Build/MRA58K; wv) AppleWebKit/537.36(KHTML, like Gecko) Version/4.0 Chrome/44.0.2403.119
Mobile Safari/537.36

This version has an error if I use any plugins and messes up the app styling. Note I am using Capacitor but I think the same would happen if I used Cordova.
Note: I can’t replicate in emulator and I don’t have physical access to the device.

Any ideas how I can update this or get around it?

This is a duplicate issue but I thought I would rephrase the title, see:

Proxy error on Android 6 device

Update: I go the app to run on the device by removing all Capacitor plugins. How ever I still have several issues: I need to use plugins in the app The css is not getting displayed correctly at all. None of the Ionic 4 colors are applying and the style are off. See attached images. It appears even after updating the Android system webview via google play to the latest and updating google chrome it is still using an old version of the webview. Here is the userAgent output: Mozilla/5.0(Li…