Last summer a study was done in this area using antibody tests and it concluded that ten times the number of people had been exposed or gotten over covid than the number of cases that had been reported. The study was poo-pooed and the time but at this point it appears that it was probably pretty accurate.
The most widely used tests for Covid are so sensitive that it is hard to know whether to call the results false positives or inconsequential nonsense. The tests were not meant to tell a person with no symptoms they were sick... they were designed to help a doctor figure out the appropriate treatment for a sick person.
90% of the positive results are now coming from people with no symptoms who are being forced to take a test for employment, travel, or some other equally inappropriate reason. The vast majority of these people will never develop symptoms especially if they are young, have no medical problems and not fat.