The quote I just gave you, in that title from that link, they say there are 300M in China today. Since there used to be 1.2 billion just a few years ago, that would indicate that 900M are gone.
Do we know that is true? No. Do we know that is not true? No.
I am quoting multiple sources: W.H.O., Elon Musk, and at least three different youtube channels providing anecdotal evidence that something is amiss as well as news reports from multiple agencies that China's response to all this is to go dark, taking many things that they used to be open about off the internet and making it secret.
All of this is evidence that something is truly horrendous in China. None of it can be seen as absolute proof, only a pile of evidence that taken together continues to reduce doubt.
However, I am not in China, I have no independent access to data that could corroborate this. Therefore I have never, not once, given my own independent estimate of how many have died. That is what you accused me of. What I have done is provide many sources, some more reputable than others that are claiming something truly horrendous has happened in China over the last few years, the country with the highest rate of vaccination. They have provided a range of estimates but the least of them would still indicate something ten times worse than the holocaust.