Set Bandwidth Monitoring only for download stream?

So I’ve setup a server that’s live in Azure (latest version, Centos 8.2). Here in Azure you get charged for outgoing bytes to internet, but anything that received inwards from internet to server is not. I wish turning off bandwidth monitoring only for uploads to server is easier, but I don’t see any config nor documentation to achieve that.

Is there a way to do this? Or at least, can you explain to me, how exactly virtualmin calculates bandwidth? These bits of info maybe can helps me digging into somewhere in virtualmin code that I can tweak with. Thanks.