Lots of conflation between whether a mask mandate stops covid and whether masks stop covid though. These aren't the same claim. Just because masks are mandated doesn't mean people aren't gathering without masks. It doesn't even mean there is enforcement (and you can't enforce every private gathering), it doesn't even mean there has been widespread communication (look yea I know about it, but how much communication going on in multiple languages? I've heard not enough)

So in all likelihood we have no idea how much masking is going on in cases of covid transmission, we simply WON'T have it through contract tracing as contract tracing is almost unbelievably ineffective here (some countries manage but really not happening here), we do have studies on masks blocking particles though. I will continue wearing N95s to protect myself from all the other people who can't wait to infect me at the grocery store or something. Yea you aren't going to.