I wonder which BI tools they use for running ad-hoc queries on their Presto cluster. The user behavioral analytics is a hassle when you use SQL and generic BI s

I wonder which BI tools they use for running ad-hoc queries on their Presto cluster. The user behavioral analytics is a hassle when you use SQL and generic BI solutions don't help with that. Also, I assume that they have dashboards that use pre-aggregated tables for faster results, they probably have ETL jobs for this use-case but is the pre-aggregated data stored on HDFS as well?