I would like my streaming services password managed by my proton account on my Nvidia Shield, sign in automatically and share with relatives the streaming services passwords that we share between each us. Google signs us up automatically when login on an new ATV device, would like to depend less on google or even using ATV without a Google account thanks to this.

Yeah I know it can be sideloaded but UI would not be optimized for TV and would not be easy for my relatives to install