u/cbaltmackie - originally from r/GenZhou
The official position of the Communist Party of China regarding the Cultural Revolution:

Regrettably, the correct line adopted at the Party’s Eighth National Congress was not fully upheld. Mistakes were made such as the Great Leap Forward and the people’s commune movement, and the scope of the struggle against Rightists was also made far too broad. Confronted with a grave and complex external environment at the time, the Party was extremely concerned about consolidating China’s socialist state power, and made a wide range of efforts in this regard. However, Comrade Mao Zedong’s theoretical and practical errors concerning class struggle in a socialist society became increasingly serious, and the Central Committee failed to rectify these mistakes in good time. Under a completely erroneous appraisal of the prevailing class relations and the political situation in the Party and the country, Comrade Mao Zedong launched and led the Cultural Revolution. The counter-revolutionary cliques of Lin Biao and Jiang Qing took advantage of Comrade Mao Zedong’s mistakes, and committed many crimes that brought disaster to the country and the people, resulting in ten years of domestic turmoil which caused the Party, the country, and the people to suffer the most serious losses and setbacks since the founding of the People’s Republic. This was an extremely bitter lesson. Acting on the will of the Party and the people, the Political Bureau of the Central Committee resolutely smashed the Gang of Four in October 1976, putting an end to the catastrophic Cultural Revolution.

https://english.www.gov.cn/policies/latestreleases/202111/16/content_WS6193a935c6d0df57f98e50b0.html