From my observations looks like when the machine network adapter is set to NAT all their network traffic goes through a single process named vmnat.exe.
I also tried setting the machine connection to bridge and host-only, and created a rule on Proxifier to intercept the machine ip "192.168.1.7" but it does not detect any traffic from the machine.
I'm trying to find a way to route each machine to a different proxy using Proxifier and directly from the host.
I'm using VMWare Workstation 17.6.1, Windows 10 as host/guest machines.