I'd actually like to see the data on the degree to which N95 masks also reduce the number of virus particles expelled. I'd be pretty surprised if an (unvented) N95 really did little to block virus particles from being expelled, even though that's certainly not what they are designed to do.
But, in any case, its consistent with my point that, supposedly, there are benefits to cloth masks, even if they don't fit tightly around the face. That's not to say it wouldn't be better if everyone wore an N95/KN95/etc.--especially people who are at high risk.
It's going to come down to the ventilation of the space you're in regardless. We're back to square zero: improperly ventilated indoor spaces are a huge public health concern, even beyond covid.
Ventilation is certainly important and I'd like to see much greater focus on this. But, to state the obvious, we're not going to improve the ventilation of existing spaces overnight, unfortunately, so we also need to figure out how to mitigate risk in the meantime.
But, in any case, its consistent with my point that, supposedly, there are benefits to cloth masks, even if they don't fit tightly around the face. That's not to say it wouldn't be better if everyone wore an N95/KN95/etc.--especially people who are at high risk.