There seems to be an issue with the latest version of Edge Dev that affects the display of favorites on the Favorites Bar. Specifically, I have opted to display some of my favorites as "Show icons only", so without text labels.
However, after I close and reopen the browser, these favorites no longer appear in the expected format. Instead of displaying as icons only, they are shown as icons with text labels.
This appears to be a bug in the browser that needs to be addressed.