That’s not quite accurate - the ONS data does not attempt to attribute COVID-19 causality in that way; death certificates that mention COVID-19 are not quite th

That’s not quite accurate - the ONS data does not attempt to attribute COVID-19 causality in that way; death certificates that mention COVID-19 are not quite the same thing as deaths we know were caused by COVID-19. To balance that somewhat there are probably missed cases hiding in the other 14,000 excess deaths as well, as you say. The NHS is open to treat all emergency patients, so in theory there should be no excess deaths due to the healthcare system breaking; however, it may be the case that people have avoided treatment due to not wanting to burden the system, or out of the fear of contracting SARS-CoV-2.