So I now have my Samsung Flipsuit case. As I mentioned previously, having no case is best, but if you need a slim case, I think Samsung's slim case is better than the third party cases out there. Third party cases all have that folder shape cut out, which I think takes away from the blacked out all screen look of the Flip5. So what Samsung did was make the top part of the case, all open, and then blacked out the edges so that the front of the phone retains the blacked out all screen look.
Also, barely adds and noticeable bulk to phone.