Ones of all design do help with droplet suppression. They do sweet f all for airborne unless properly fit and of the right rating. Covid for all practical purposes behaves like it is airborne. If you haven't realized this by now, I don't know what to say to convince you.
Maybe these will help:
I already said that not all masks are the same.
But any mask is better than no mask. Which is what happens if you mandate a far more expensive and harder to get N95 variant.
" In theory, transmission should be reduced the most if both infected members and other contacts wear masks"
Wish you had read the studies you posted
I did actually. That line you quoted was what they (and most all of us would expect).
The data didn't prove it out though, they report this in their analysis: "We did not find evidence that surgical-type face masks are effective in reducing laboratory-confirmed influenza transmission, either when worn by infected persons (source control) or by persons in the general community to reduce their susceptibility"
Which is simply rubbish.
Masks of all kinds will prevent transmission albeit with varying levels of efficacy. And most importantly they impact human behaviour in ways which prevent transmission.
Not to mention that N95 masks are more expensive which would have reduced its use by people who are poorer and are far more likely to spread the virus i.e. they are more likely to have multiple jobs, travel further for their job, work longer hours etc.