Don't forget that players on their day in Grand Slams can beat Serena as Ka. Pliskova and Sonia Kenin illustrated in 2019. Of course in 2020 Kenin won Australia.
Yes I think saying that the forum is generally anti-Serena is pushing it far too far. Certainly I think the amount of respect Serena gets is far greater and more deserved than that accorded to someone like Sharapova. But in terms of this match, it's been a while since Serena won a grand slam and she is passed her best, especially with her irregular schedule. In fact it's sad for her she won't get to Wimbledon this year as it might have been her best chance to eventually get that record win...