You are out of touch, if it is as you say why is there a huge infection rate after they ended the lock down ? Conclusion is that someone lied about the vaccinated rate to make themselves look good to Xi Jinping. Any Chinese in China can confirmed what I said and looking at your location now you...
You don't live in China, if you did you would know that if you take 2 dose when it was first introduce you are considered as vaccinated, even if 2nd year when you didn't take any boosters. The vaccine antibodies will go down if you didn't take any boosters from 2nd year onwards, so it is outdated.