Office 365 people - contacts list change?

Hello,

Myself and a few users on the people web app on Office 365 suddenly looks different, with no apparent way to change it. Screenshot attached - notice how all the contact info is squished on the right side. It used to come up in a larger window, with the actual contacts list being much thinner. Was this an update from Microsoft? Or a setting that got changed? And, is there a way we can change it back?

Thanks for reading.