You are looking at COVID too high level. Plenty of people agree that it exists, but disagree with the details. Everything from just how serious the disease is, to how virulent, to effectiveness of masks, to how it was even released i to the “wild”.

Obviously I won’t give examples of any of the above dissenting points because that’s a good way to get banned here and in any other space where the socio-political narrative is enforced.

Edit: Furthermore I’m not saying anything about my own opinions in the question. Just giving my answer to the OP’s confusion.