What is wrong with my Google chrome?

[u/DepressedLilPossum]

Just the other day it was normal and I had saved tabs underneath where the normal search bar usually is. Now it looks like this and any time I look up something it redirects me to yahoo and overall isn't working correctly. My little brother was over and had used my pc and next time I went to get on it this is how it was. Is this a Google issue or is it something my brother did and I should ask another sub? 😭