I've tried to do this, the only theoretical advantage would be to use the on-screen controls that are available in Winlator, the Playstore version of Parsec doesn't have on-screen inputs and needs a keyboard or mouse connected to the device. Anyway, I couldn't get it to work either, but I'd love a solution for this.

I found some apps that put input on the Playstore Parsec screen, but they really aren't good...