The mortality risk of undetected/unaddressed heart problems, etc, far supercedes the risk from COVID-19. You could find some limited examples where that's not true but it is overwhelmingly the case.
It is becoming increasingly clear that the level of panic associated with COVID-19 is absolutely divorced from the ground truths.
But it doesn't just affect non-COVID-19 mortality. It may be that our response is even making COVID-19 mortality worse in some cases:
From https://www.nejm.org/doi/full/10.1056/NEJMc2009787?query=rec...):
"Social distancing, isolation, and reluctance to present to the hospital may contribute to poor outcomes. Two patients in our series delayed calling an ambulance because they were concerned about going to a hospital during the pandemic." (My note: So the irony here is incredible, these weren't just non-COVID-19 patients afraid to come in but _people who actually had life-threatening COVID-19_.)
And from https://www.thelancet.com/journals/lanpsy/article/PIIS2215-0...:
"Third, the COVID-19 epidemic has caused a parallel epidemic of fear, anxiety, and depression. People with mental health conditions could be more substantially influenced by the emotional responses brought on by the COVID-19 epidemic, resulting in relapses or worsening of an already existing mental health condition because of high susceptibility to stress compared with the general population."
and
"Finally, many people with mental health disorders attend regular outpatient visits for evaluations and prescriptions. However, nationwide regulations on travel and quarantine have resulted in these regular visits becoming more difficult and impractical to attend."