Properly fit N95+ masks definitely protect the wearer, but in clinical settings are also combined with measures like a faceshield (which reduces droplet exposure to the eyes specifically, and reduces possible viral load on the face generally).

Conversely: pretty much all masks (though ones with an exhalation valve will reduce the effectiveness) will reduce the spread of droplets and thus virus from exhalation and talking: https://www.youtube.com/watch?v=kYJvU81DKgk