Far more ideological distant then you might think.
The current Russia has nothing to do with communism, it's
all about oligarchs and authoritarian capitalism.
China's ideology "hates" oligarchs, but they are also authoritarian,
and have common opposition so working together makes sense. But that's it.
Besides "authoritarian" they share very little in common wrt. there ideology.
> I think it’s interesting that China could dictate the timing to Russia.
It's not the 70s anymore. China is far stronger than Russia, and going forward Russia will be extremely dependent on them, because of sanctions for the Ukraine invasion.
IMHO, China's likely going to be able to turn Russia into a vassal.