[BitWielder1]

Even saying that masks were ineffective and therefore pointless and should not be enforced could land you in hot water.
So it is a free speech issue.

[mewzilla]

In addition to which...

Masks are fomites.

And some bugs, both viral and bacteria, ARE spread by fomites.

There’s a very good reason why we don’t hear about nosocomial infections in the news anymore, isn’t there.

Muzzles are part of that reason.