Of course. I've heard about the same reports - not read them though, so thanks for the links. But again, this is mostly based on anecdotal "evidence", and many of the anecdotes are of cases from early in the pandemic when the disease wasn't yet on everyone's radar screen. What I'm wondering about isn't whether it has happened or even whether it is still happening - I have no trouble believing it still does to an extent - but whether it really amounts to a massive undercount of COVID-19 deaths. Those early missed cases would have been at a time when the total number of known cases - and presumably total cases too - was a couple orders of magnitude below what it is now. It's true that even today, testing is not up to the level it should be, but as far as I know every state's testing eligibility criteria say that anyone who is seriously ill with respiratory symptoms should be tested. Unless the shortage of testing kits is still so severe that many are actually not tested (not just isolated cases, but MANY), it's hard to believe we are still seriously under-counting actual COVID-19
deaths (as opposed to infections).
But this is a chaotic, messy situation, so I guess anything is POSSIBLE.