https://off-guardian.org/2021/09/22/30-facts-you-n...
29: Since the beginning of 2020, the Flu has “disappeared”. In the United States, since February 2020, influenza cases have allegedly dropped by over 98%.
It’s not just the US either, globally flu has apparently almost completely disappeared.
Meanwhile, a new disease called “Covid”, which has identical symptoms and a similar mortality rate to influenza, is apparently affecting all the people normally affected by the flu.
The site they link to seems to explain this with one obvious answer:
https://www.healthline.com/health-news/why-the-flu...
Due to influenza’s short incubation period and widespread population immunity, the measures used to stop the spread of COVID-19 also caused flu activity to drastically drop.