So much disinformation is STILL being circulated. The Sars-cov-2 virus was a new virus that humans had not been exposed to. It was highly contagious and dangerous. The Sars-cov (1) virus of 2002 killed approximately 9% of those infected. The Sar-Cov-2 had a rate of serious illness about 10 times that of the unrelated flu virus. Mortality rates early on were between .5% and 1.5% mortality before we developed a more effective therapy for recovery. The unpredictable way people responded to exposure contributed to its spread and the dismissive reactions of some. While the medical profession scrambled to find therapies and equipment to deal with it, the best course was to limit the transmission rate and slow the curve to enable the worlds hospitals to keep up.
The vaccines were successful at reducing the viral load, and thereby lowering the risk of serious illness and transmission.
As all viruses (given the chance) do, it evolved into dozens of variants in the bodies of the infected. The variants that were more contagious spread faster and became dominant. Fortunately, and not inevitably, as the virus became more contagious it also became less dangerous to otherwise healthy people. The virus in some form is now endemic and will be with us for a long time. It's still advised we continue to wear a mask in indoor public settings for those who are not willing or able to get the vaccines and those who, like me, have cancer or other health issues that would be a complication to recovering from even the new variants.