Product : Microsoft, HyperV/2019, DataCenter
Feature : Migration Compatibility, VM Mobility, VM Mobility and HA
Content Owner:  Roman Macek
Summary
Yes (Processor Compatibility)
Details
Windows Server 2008 R2 Hyper-V introduced a new capability called “processor compatibility mode for live migration, which enabled live migrations across hosts with differing CPU architectures. This capability is maintained in Server 2019.