When I used to watch TV, I definitely noticed there were way too many interracial couples. Has there ever been any well-done study?

I can only find this. https://www.voanews.com/a/usa_race-america_americans-see-more-interracial-relationships-advertising/6202928.html

Johnson notes that 70% of interracial commercials from the past four years show a white man with a Black woman. The reality, he said, is a Black man with a white woman is more common in America.

That is already sus because White-Hispanic marriages are the most common type of interracial marriage. The white man with black woman is very rare. https://www.pewresearch.org/social-trends/2017/05/18/1-trends-and-patterns-in-intermarriage/pst_2017-05-15-intermarriage-01-00/