What do you think of when you hear the word “Kobe Beef”?
Delicious beef?
Kobe Beef officially refers to a specific breed of cattle produced and raised in Hyogo Prefecture, Japan, that meets strict standards.
For more information
https://www.kobe-niku.jp/en/contents/about/criteria.html

Wagyu is a breed of cattle native to Japan that includes Kobe Beef.
http://jlec-pr.jp/ebook/en/HTML5/pc.html#/page/1

In other words, Kobe Beef is Wagyu, but all Wagyu is not Kobe Beef.
We are glad if you know about wagyu more.