Adding controller support for Nvidia GeForce Now on the iPad

On my iPad while using GeForce Now the app says that Kingmaker is not supported on this device. Clicking a link for more information tells me “On iOS and iPadOS, only games that support full or partial gamepad are playable on GeForce NOW. This is because Safari does not support pointer-lock mouse functionality while streaming.”.

From what I understand Kingmaker does have controller support on other devices. I believe I would be able to launch Pathfinder: WotR on my iPad using GeForce Now, though I don’t own that game. Would it be easy to enable controller support for Kingmaker to allow me to play on my iPad? My computer is falling apart and this is the only option I have to play.

Please and thank you!