The majority of the 98 page testimony from Mr. Nix, CEO of Cambridge Analytica, and his legal, Mr. Muskens, was tense at times but no real bombshells IMO.
https://docs.house.gov/meetings/IG/IG00/CPRT-116-IG00-D061.pdf
Starting on page 95, the lawyer reports in-the-moment leaking from the proceedings. Keep in mind that this testimony was done virtually and someone on the committee's team was leaking.
See Pics