Just playing devils advocate here but are those that are under 40 who are getting it have a concerning mortality or severe complication rate or is it mostly a bad flu for them?
No..... The mortality rate for 40 with Covid is worse than the mortality rate of 40 with flu. The mortality rate for 40 with Covid may indeed be similar to the mortality rate of a 80-year-old with flu (for illustration only, I don't have the exact numbers before me).
In other words -- when correcting for age, co-morbidities, etc, Covid is always more dangerous than the flu. But mortality from flu is lower in a healthy 40 year-old than in a 80 year-old with COPD, just like mortality from Covid is lower in a healthy 40 year-old than a COPD 80-year-old.
But at no point, for no adult, is "Covid just like the flu."
Edited to add supporting data:
Flu deaths by age (pre-Covid, 2018-2019):
In the 2023-2024 flu season, there were a total of almost 28,000 influenza deaths. Flu deaths are much more common among the elderly than other age groups.
www.statista.com
Between the beginning of January 2020 and June 14, 2023, of the 1,134,641 deaths caused by COVID-19 in the United States, around 307,169 had occurred among those aged 85 years and older.
www.statista.com
So in 2018-2019, 2450 flu deaths among 18-49 year olds.
From 2020-2021, Covid deaths among 18-49: 22,143 deaths.
So for adults 18-49, in the United States, Covid has proven 9 times more deadly. (that's not 9 times more deadly per infection, but 9times more deadly to the entire 18-49 population than a typical year of the flu).
In the 65+ age group, flu deaths in 2018-2019 - 25,555
Covid deaths: 417,991:
So 16x
So for adults 18-49, Covid is about 9 times more dangerous than the flu
For adults 65+, Covid is about 16 times more dangerous than the flu
For 50-64 year olds: Covid is about 14 times more dangerous than the flu