https://www.androidtipster.com/what-is-the-key-icon-on-android/
Information about how to find and remove a VPN.
Navigate to the ‘Settings’ menu of your android phone
Now, depending on the model of your phone, you have to go to the ‘Wireless and Networks > VPN’ option. For some models, it might be Networks>More>VPN.
Or else, search for ‘VPN’ on the search bar above the screen. And tap on the ‘VPN’ option from the search result. Whatever the case for you, your aim is to find the VPN settings on your android phone
Now that you are on the VPN settings, you will find the name of the VPN apps installed on your phone
Among them, you will find an app that will be in the ‘Connected’ state
So, tap on the connected app. In doing so, a popup will appear saying whether you would want to disconnect the VPN service or not
Simply, tap on the ‘Disconnect’ option and the VPN app will be disconnected