If you know what e.g. stands for, you don't need to expand it. Native speakers just say "e.g.", as in, "ee gee". If you don't know what "fx" stands for then how

If you know what e.g. stands for, you don't need to expand it. Native speakers just say "e.g.", as in, "ee gee". If you don't know what "fx" stands for then how would you expand it? It's not a common abbreviation at all