No. Anosmia/ageusia is a regular thing with respiratiry diseases even if you don't have a problems with sinus. Nobody just take in mind, because it is a common thing. However, when dumb idiots was told on TV that awful, scary covid is very special with loss of taste and smell, they become afraid to insanity and pay hight attention to that common thing. The fear made effect more scary - and here we are. "It is different from what I have with the flu!!!" bullshit.

Fear or upset easily made anosmia/ageusia much worse. Just recall situations like, IDK, when you occasionally drop your new smartphone into the toilet. Remember that strange taste in your mouth? That's it, you loose your taste (and smell too) for some time. Now imagine that you are a dumb idiot who believe in coronahoax, listen all that fearmongering for years and permanently live in fear. Any sign of anything that named "covid sympthoms" inevitablty starts heaviest panic/fear/upset attack. That dumb idiot will loose not only smell and taste, but also a huge amount of health and mind.

Keys for research: "Seattle windshield pitting epidemic", "nocebo", "symptoms of fear".