This is not really a feature request, rather pointing out an obvious bug in Roon. But, I did not find any list for reporting bugs. Anyway, the picture below says it all
In tag mode, when displaying a tag it is not possible to see the complete title of each album. So, you would expect that hovering over an album with the mouse would reveal the complete title. But no, the only way to see the title of the album is to open up the album (that you do not know what is since you can not see the title; a little Catch22).