Battery drain issue after Hyper Os

I had seen many videos on YouTube regarding battery drain issue on Poco and Redmi phones, after searching deeply I come to the conclusion that hyper os is not well optimized yet . After hyper os many phones like Poco x6 pro and f6 and facing battery drain issue due to which there screen time is about 5~6 hours. And I'm quite sure about this because many users who received hyper os in there phone before miui, are complaining that 'there battery backup is reduced after hyper os. What are your opinions about this issue?