Onn Roku TV unfamiliar VPN APP
I noticed on my Roku TV an APP called 'VPN TV' and I've searched every possible nook and cranny of the internet and nobody knows what it is, as far as searches go, it's not an app, but a gateway to 3rd party VPN services, that you have to choose when its started, but all it does when it's started is ask for login and password, to where? I've tried a VPN auth KEY, using the creds from my ProtonVPN API details, and it says invalid login, I tried the login for my VPN account, and it says invalid login.
Does anyone know what the heck this app is? And why there's nothing about it anywhere, it obviously comes from Roku, otherwise it wouldn't be in the list of apps to download, and the TV is a Roku ONLY TV not Android, so there's no settings to download from unknown sources.