Behind the show of strength of Russia , China and the 3rd despot of North Korea this is a sham alliance that wouldn’t stand up in the real world. The facts are that China wouldn’t stand ip for Putin in a fight with the West.
China is only interested in China. China are self interested and wouldn’t stand up with Putin if challenged by the West.
Reason for this is that Chinese economy relies on exports to the West. China’s elitist rule over a subjugated population relies on the economy being stable and successful. A destabilising effect such as going to war with the West is more likely to be met with an angry revolution. Keeping the population happy is very much a part of the subjugation of the people. Without it the whole country is likely to implode in another people’s revolution. Keep the Chinese people smiling otherwise they will turn on you.
So Putin can strut about as much as he wants falsely believing that he has powerful friends on his side. The actual situation is far from the illusion he wants to create. Putin would be on his own with any war with the West.