The science is not heavily on the side of masks help. Here is a list of papers looking at the effect of different corona measures:
https://thefatemperor.com/publ…-and-lockdown-huge-harms/
Sweden is the perfect example that wearing (cloth) masks is nonsense. They dont even consider wearing masks and there ICU cases and deaths are in the usual range - only having a few restrictions and a strong focus on voluntary measures.