Thanks, and yes, the PCR test is the most common test being used - at least at the drive-up test stations and in hospitals and what not, although there are also antigen tests that are also admittedly wildly unreliable, so much so that many of the ‘authorities’ actually recommend against them in favor of the supposedly more accurate PCR (which are not accurate at all!)
The new at-home test kits authorized by Biden are some form of these antibody tests, not PCR. But nonetheless of great concern as they only test for coronavirus antibodies, meaning anyone who has ever had a coronavirus in the past (and thus has antibodies) will test positive - and this admittedly includes the common cold! Also, the only way they work is if people use the associated smartphone app, just one more facet of the emerging technocratic control and tracking grid being built up around the illusion of fighting a virus.