Apologies for breaking into this group hug.
In a few strides it seems to have leapt from the co-authored opinions and musings of Hancock and Oakeshott, to an extracted bit about non-medical masks to your conclusion that medical guidance was bollocks.
Here is the wiki on Covid face masks. Includes links to the multiplicity of studies on mask effectiveness, which vary by type but all offer a level of protection, particularly in indoor settings.
https://en.wikipedia.org/wiki/Face_m...ID-19_pandemic
Remarkably almost every country on the planet where Covid has had a footprint reached the conclusion that mask wearing had a key role to play in Covid prevention, particularly when stricter lockdown measures were lifted. There are arguments around the fringes on whether some of the measures introduced were over cautious and politically driven.
However to see this as some kind of vindication that you and your small cohort are somehow vindicated verses the wealth of expert guidance and medical studies is frankly for the birds.