I think they give too much credence to the "once you see it, you can't unsee it" arrow in the FedEx logo. I only became aware of the arrow after it was pointed

I think they give too much credence to the "once you see it, you can't unsee it" arrow in the FedEx logo. I only became aware of the arrow after it was pointed out to me sometime in the last 10 years and reading this article reminded me of the existence of the arrow, meaning I had kind of forgotten about it. I even quickly did an image search for the logo to look at it again and had the same feeling of "Oh, now that I am reminded to look for it, there it is, I suppose.". I don't see my general impression of the React logo changing either even after this article. I expect that I'll soon forget the nut is there until it is pointed out to me again, at which point I'll say "Oh, now that you mention it, I remember reading some article a while back saying they did that on purpose.". Perhaps this "clever" graphic design excites graphic designers, but the effect on the general public might not be as much as they think.