2 Letter Sender Initials - how to get back to full senders name

2 Letter Sender Initials - how to get back to full senders name

I think there was a recent UI update that gives an Android like experience where it shows just 2 initials. How can i show the user name that sent the email.  I find it really hard at a glance to see who sent me email - i have to hover over every block to see email address.