I logged into Mailchimp yesterday and found that they moved the header navigation to the left side.
Instead of the previous menu option words like Campaigns or Audience there were icons signifying each that I had to hover over to figure out what they might mean. Then when I went to my Reports the css breakpoints seemed to be wonky making that screen hard to read and use.
Half-jokingly It almost feels like constantly confusing people is a trick to boost engagement temporarily while people are forced to figure things out.