I am not implying anything about your Rav. I am interested to hear his opinion and reasons.
I do have capacity and a degree (this is for Common, he only cares about certified opinions) to be able to process scientific literature and understand that there are a lot of unsafe things that can happen. We presented here lots of facts, not “modern orthodox” opinions. And we are not “ignoring rabbinical authority” as there are a lot of Rabbis of all flavors who pasken to be careful. I did not organize our outdoor minyan, a kollel-educated Rav did. Lakewoodish Rosh Kollel requires masks and wears one himself inside and outside. I also understand that there are trade-offs. One of them _might_ be based on what your congregation can handle.
But it goes to basic human nature: it seems that any human being would like to protect people around us. You are saying that your Rav says – no, you don’t have to, for whatever reasons. It sounds natural for you to ask – what is his reasoning, so you understand it and maybe explain to others, like us. And would he permit/advise you personally to be more careful? Seems like you are refusing to ask a shaila, not me.