Link it.So you want to die on this hill?
So Pfizer and BioNTech publishing an article on the Pfizer website with references and studies given called, "HOW DO VIRUSES MUTATE AND WHAT IT MEANS FOR A VACCINE" that clearly states; "Although SARS-CoV-2 is mutating...Studies to DATE estimate that the novel coronavirus mutates at a rate approximately 4 times slower than the influenza virus, also known as the seasonal flu virus."
You haven't linked anything here