3 points
It appears China and Russia are visa-free for each other’s tour groups since 2023.
2 points
That’s funny, because I have specifically went looking for tours to China after reading this article (and again after reading your comment) and the visa requirements are there. There are supposedly some caveats: for example if one is flying transit through China, visiting Shanghai via a cruise ship or have residence permit.
Although I suspect you correct, judging by the amount of Chinese tourist groups in Moscow and Petersburg