Edit: in addition to the part below, I now see major flaws: Of course there is a positive correlation between masks and deaths. But the causality is important:

Edit: in addition to the part below, I now see major flaws: Of course there is a positive correlation between masks and deaths. But the causality is important: when I see more deaths in my country, of course will I wear my mask more often. This study would have been much better if changepoints would have been looked at. In this Form there are many unknown von founders to draw conclusions in my opinion. For now I keep my doubts on this study. Before edit: Can someone shed light on the trustworthiness of that publication website as well as the author? Is “cureus” a trusted resource? I’m always doubtful if there is only one author on a paper - unless it’s a really well known person. COVID-19 was used by far too many as a vehicle to push their profile or agendas. This result seems to be quite in contrast to the investigations famous labs and institutions did (like RKI and the likes)