Patrick,
Remote Config at this point allows you to set up the experiment but it does not have a way of reporting it.
To do so you really need to do two things:
1. Record the experiment in a User Property of Firebase Analytics. You can detect an experiment variant by using a Config parameter.
2. Export the results into Big Query and do the queries to figure out the results.
We are actually actively working on A/B test suite for Remote Config but do not expect it to be ready until at least the end of this quarter.