On Wednesday, July 8, 2020 at 8:58:16 PM UTC-4, wrote:
The use of anti-oxidant paste is pretty much up to the installer. Some
manufacturers recommend using it on their lugs but none require it as
part of the listing and the NEC is silent on the issue.
The strange thing is most lugs are aluminum and actually perform
better with aluminum wire than copper, goo or not.

Just to add, the Alumiconn connectors I used came filled with the paste. You can't avoid using it.