I ran into this online couple days ago and was really surprised that (according to this sites collection at least) there seems to be stronger evidence for masks not being effective for stopping spread of COVID: https://swprs.org/face-masks-evidence/

EDIT: I see downvotes and that's okay I guess, but I'm not any kind of medical or scientific expert so I'd rather hear why you think this list is wrong. For me it looks like a comprehensive list of research about the topic.