This laptop does not support an Ethernet Adapter.
I contacted Acer tech support to find if they have an ethernet USB CD converter cable. They do not. They only support the very old installed ethernet to USB 2.0 adapter. This laptop has a USB C port. I'm sure that it should support an aftermarket "ethernet to USB C cable adapter".
Just asking if anyone else is familiar with this and can confirm.
From all my experiences, it seems every year Acer tech support becomes less knowledgeable - but that's the case with many computer support departments
[Edited the thread to add issue detail]