OWA new look but only in Edge

Hi,

In need of some advice please.

I noticed a while ago that OWA has changed the layout, I don't use it a lot so didn't worry about it.  I recently needed to log into another mailbox that I have access to while the person is on maternity leave to change some meetings and couldn't find it in the new layout.  So, I opened OWA in Chrome and it's still the older look and feel, which I much prefer.  Is there any way to get Edge back to the older layout of OWA please? 

Below you can see Chrome on the left and Edge on the right.