Jaime Pressly and Margot Robbie but I don't think the people in the OP look alike.

In the '80s it was Tom Selleck and Burt Reynolds for me.

At various periods of time, I've been unable to tell the difference between Val Kilmer and Kurt Russell.

I'd much rather have Claire Danes goop scented candle

You need to get checked for prosopagnosia.

I still can’t tell Jessica Chastain and Bryce Dallas Howard apart. I constantly misremember who is in what movie.

I certainly can't tell most of the Chrises apart.

What about Bryce Dallas Howard and Jessica Chastaine?

However for white celebrities, it seems to be the exception. For celebrities of colour, it's a common experience.

I swear I can't see the differences other than the hair when I look at a kpop video. Idk if its a messed up beauty standards or just me but everyone seems to have the exact same head shape, pale skin and a perfectly smooth face.

Women can be difficult recognize if they share one or two similar features. I blame it on the makeup the wear. Danes and Paltrow are skilled in using makeup and can use it to alter their looks a lot.