What happened to privacy coins

The performance of top privacy coins has not been good and there is much less discussion about them compared to 9 years ago. With time has the privacy coin utility dried up or it has saturated in terms of its users and market cap?
There has been a notion that coins which promote anonymity would be taken down by the government. With Tornado cash founder serving jail time, confidence of investors has dropped for this sector. The only thing keeping it alive are the users who use it as utility.

Performance of top privacy coins

https://preview.redd.it/n3h6qayloved1.png?1412&format=png&auto=webp&s=2e74e421c95abd7c9937f560e89a0aacb58cd558