Since 0.104 Design/Usability really sucks, so I’m still using F-Droid 0.102.3.
In every newer versions I’m missing a normal list of apps. I can just see chaotic tiles in different sizes with really bad overview. And I cannot switch between “What’s New” and “Recently Updated” Apps anymore. 
A post was merged into an existing topic: New UI / UX of F-Droid app
FYI, if you want a list view, then click on the search button, and that provides a list view similar to the old UI.