Partly true. If I am not mistaken... there is no such thing as asymptomatic flu. If you get the virus... you get symptoms. At least 30% of all Covid cases don't even have symptoms.
CDC has never demanded the level of accuracy for flu numbers as they are Covid-19. That would be fine if they explained it and did not contribute to fear and panic. They estimate flu cases each year using hospitalizations. Two years ago, 950,000 Americans were hospitalized for the flu mostly between November and the end of April. We did not shut down schools even though the flu appears to be more deadly to children than Covid. Our medical resources were not overwhelmed even though that is twice as many hospitalizations as we are on track to have for Covid in the entire year.
The estimated number of flu cases that year was 60-80 million. Though less than 10 million Covid cases have been confirmed, the actual number is 10-20 times higher according to several studies. Somewhere between 30 and 50 million Americans have probably been infected with Covid by now. Most blew their noses and went to work. One of the takeaways is that the larger number of infections means that the virus is nowhere near as deadly as originally thought. In fact, if you cut off the "peak" before any treatment protocols were developed... and compare what's going on now... it starts to look a lot like a bad flu season.