I honestly think this is one of those regional differences though where our Country handled some aspects different
Our ER's and medical clinics were not, nor ever closed off to non-covid patients. we only hit the point once (aprils 3rd wave) where we had 100% capacity in some hospitals. most of rural ontario did not have covid outbreaks so their hospitals were 100% open to Flu patients. So throughout the entirety of 2020 and 2021, People were absolutely still going to clinics, hospitals and ER's for all sorts of things, including flu and flu like symptoms.
While we delayed a lot of surgeries and optional treatments during the pandemic to keep hospital ICUs use low, we didn't do what you're saying about admissions and overhaul. And throughout most of 2021 we didn't have mandatory quarantines in Ontario (which likely led to the large spike in the 3rd wave). Discussing why we were so "open" though gets political.
So while what you're claiming that nobody was getting tested for the flu for various reasosn. That was not the truth up here. We actively continued testing for it (as the report I linked shows) and that there was still some flus, but the known preventative measures to stop the flu, were the same ones we were using to affect Covid. Covid is just that much much more contagious than the average flu.
so again< I think this is one of those areas where, the different ways we handled Covid likely also had massively different outcomes not just in Covid, but other's including the flu. We also know that yearly there's a certain average of patients who do die from the Flu. The FLu can kill. In the 2019-2020 (prior to covid) flu season (
https://www.canada.ca/en/public-hea...ditions/fluwatch/2019-2020/annual-report.html ),
> A total of 306 ICU admissions and 120 deaths were reported this season by participating province and territories.
The 2020-2021 report isn't out yet, But so far, these numbers are expected to be fractions of what they were in the year before.
So even if we're just talking Deaths, and we're seeing dramatic decrease, that's enough further evidence that the spread of the flu is greatly hampered by all the measures we've taken against Covid.
So, if the US / States you are in locked out Flu patients from medical treatment due to being swamped by Covid, so that you can't trust the numbers, I can attest that, that is NOT the norma around the world and some other jurisdictions have done far greater job at tracking and monitoring it than yours'