I've seen some examples of a drilldown feature to know the specifics of other metrics sent during a step in the funnel, but I can't find the feature in the new UI, was it also removed? I just launched a game trusting Unity Analytics could be helpful to get data on the balance of my game, but I'm fearing all that data will be useless as it seems like this product is just being abandoned, not even the product webpage is up to date with what has been removed...
Sorry, we've never had a drill down feature. You specify the metrics for each funnel step. Keep in mind that funnel steps are sequential for tracking user progress through your game, they are not "buckets" for the events received. That is, a user must finish/send the event associated with Step 1 before they can enter Step 2. Your funnel page would be located at https://analytics.cloud.unity3d.com/projects/[UnityProjectID]/funnel/
In the Unity documentation, it mentions there being a "Drilldown Section": "A Funnel Analyzer report has two sections: the Funnel chart and the Drilldown section" https://docs.unity3d.com/Manual/UnityAnalyticsFunnels.html