I usually don’t pay attention to them. There’s some little known thing that someone at Google thought should be brought to the world’s attention so they put a doodle of it on their main page and you can click it if you want to find out what it’s about.
I usually don’t even notice them, except this one looked so much like Obama that I thought the link was going to be to a “who’s really running the White House” web site.
But ... not him.
Ah. I’m just not at all familiar with them because I’ve never ever used Chrome, even though it seems that “someone” tries to force it onto my laptop about once a week on average.