Last year's Flu was of a strain that the jabs didn't protect against, as the flu jabs use an older method of production that means they take a guess at the top 3 or 4 most likely strains then start making them about 6-9 months in advance.Interesting that flu caused more deaths last winter than covid despite flu jabs being readily available yet nobody freaks out about flu...
For the majority of people flu would be much, much worse than covid too..
And it was from memory a nastier strain of flu than normal on top of that.
People don't tend to worry as much about the flu because we've got a number of treatments for it, we've had jabs that have typically worked for decades (and we've become somewhat complacent because of that), and the flu doesn't do multiple organ damage (IIRC some of the newer covid research is saying covid can not only directly damage all sorts of organs, but major blood vessels).