alt Hacker News1. Xinjiang detention and surveillance (2017-ongoing)
2. Hong Kong National Security Law (2020-ongoing)
3. COVID-19 lockdown policies (2020-2022)
4. Crackdown on journalists and dissidents (ongoing)
5. Tibet cultural suppression (ongoing)
6. Forced organ harvesting allegations (ongoing)
7. South China Sea militarization (ongoing)
8. Taiwan military intimidation (2020-ongoing)
9. Suppression of Inner Mongolia language rights (2020-ongoing)
10. Transnational repression (2020-ongoing)
Let's not forget about the smaller things like the disappearance of Peng Shuai[0] and the associated evasiveness of the Chinese authorities. It seems that, in the PRC, if you resist a member of the government, you just disappear.
[0]: https://en.wikipedia.org/wiki/Disappearance_of_Peng_Shuai