Studio YAGER has published a video on its YouTube channel with detailed statistics of the past closed beta testing of The Cycle: Frontier. Over 600,000 people played Frontier during CBT-2, over 301 million hours played, over 5 million PvP players eliminated, and 17,835 streamers from around the world sharing their gameplay.
This testing lasted much longer than originally planned, and throughout the time several patches were released with many fixes. The exact release date of The Cycle: Frontier is still unknown, but should be released during 2022.
You can see detailed statistics during the second stage of the closed beta testing below: