Product : Microsoft, HyperV/2019, DataCenter
Feature : Serial Ports, VM Config , Hypervisor
Content Owner:  Roman Macek
Summary
yes (named pipe)
Details
(no major updates with WS 2019)
virtual machine serial port (max 2) can natively only be connected to a named pipe (i.e. not to the host physical port or network unless using 3rd party options)