Exactly the same question as the thread here
RE: Does Sophos support Intel i226-V 2.5G?
Except I would like to know then this support will be introduced as these nics have been out forever and linux kernel fully supports now as well.
Important note about SSL VPN compatibility for 20.0 MR1 with EoL SFOS versions and UTM9 OS. Learn more in the release notes.