I don't see these continual references to the "seasonal flu" as helpful, based on my own experience...I'm 65 yrs old, experience heart failure to the point where I have an ICD implanted and 3 or 4 yrs ago was medically approved for disability. I went back to work because I couldn't really support the lifestyle I had grown accustomed to on what I qualified for on disability...
In other words, I fit pretty distinctly into the "high risk" category for both COVID and "the flu"... Despite that, I rarely get a flu shot, have never gotten 1 two years in a row, and usually only get one if it starts to sound like it's a more ramped up season than normal. I was going to get one this season because there was supposed to be a more virulent strain of pneumonia associated with the expected version, but when I went to Kroger I was informed that it was only available for those 65 and older. Since I was still 64 and wouldn't qualify till April they couldn't give it to me, and that was in late Jan/early Feb...
I suspect it had to do with medicare, and decided I'd just wait till April to see if I felt it was necessary. In the meantime, we started seeing images and hearing horror stories from Italy, and for me, that is when COVID became real on a personal level. I never did get the flu shot, and I haven't experienced any symptoms for the virus. But if a vaccine became available today I'd be all masked up in line to get mine. THAT to me is the difference between "the flu" and COVID...