Thought I’d add my vote for this as I was doing some testing with a VM that I was to be an internal NAT for traversal to an outside facing network. Just to build a config out and get a nice backup to start with on the actual server. Anyway, I noticed that the upload speeds were severely limited on the bridge interface I put on the VM so it could communicate and test.
In my quick and limited research I saw that sometimes you hit upload limitations with bridged interfaces and a MACVLAN was a possible solution so I went down that road which led me here.
Anyway, +1 on the votes for this as it would be helpful in this edge case scenario.