There are a number of confounding factors with WW84. To be honest there seems to be a pandemic-driven lack of hype in the West (this isn't based on anything objective, just the impressions I've gotten) and I can imagine that bleeding over to international performances given that these usually aren't independent. As was pointed out, the marketing hasn't been at the level blockbusters usually get. Add to that the piracy factor. I think Black Widow will give a much better indication of how Hollywood performs in China in the future.