Ethernet drivers for ESXi can be obtained from VMware
Intel® NUC8i7BE, NUC8i5BE, or NUC8i3BE is not responding to WOL.
The Intel® NUC8i[x]BE family of NUCs uses the Intel i219v Gigabit Ethernet Controller. Intel provides reference drivers to VMware*, which VMware then customizes to include their software.
See VMware's Compatibility Guide for information related to their driver.