We are looking to use Firebase Remote Config for A/B Testing and Gradual feature rollout and we are struggling to setup a proper percentage rollout condition that is also considering users across multiple platforms and devices.
For instance we want to start targeting 10% of our user-base where a user would be identified across all their apps (iOS, Android and Web).
At the moment I am unable to find such option in Firebase Remote Config condition. I believe this is a pretty common usecase for feature rollouts as I don't want same user to have feature enabled on their iOS app but disabled on Web or the other way around. By same user I mean same authenticated user.
Can you advise if such usecase would be possible with Firebase Remote config?
Best,