I don't think there's much direct evidence to support natural spillover event other than that much of the initial spread could be localized to a wet market, which may have had vendors selling meat from animals known to carry these types of viruses. That seems like pretty weak evidence, though. Other than that, IMO we should have very high prior weight assigned to the natural origin hypothesis in the Bayesian sense, so even without new direct evidence it's still reasonable to believe that hypothesis to be more likely.

This comment pretty much states the same reasons I've come to believe that a lab leak origin is unlikely for covid: https://scottaaronson.blog/?p=6183#comment-1922813