Expand the view on the Quick Reply, Help Desk Topics, and Category fields.
While using the new UI, pressing on various drop-down menus such as 'Select a Quick Reply Templet', 'Help Desk Topic', and 'Category' do not allow for the full text field to be displayed. For example, on 'Select a Quick Reply Template', when the template name is over 21 characters long, it just adds "..." and you cannot read the full title of the template. Therefore, when selecting, you cannot distinguish similar named templates from one another.
My personal suggestion for a resolution to this problem could be something as simple as adding in a resizing handle to the drop-down menu that appears when pressing on these. From there, the individual users would be able to reseize to their preference.