I think the comparison with Death Parade isn't entirely accurate, but it is instructive to compare the two shows. DP and FF both contain episodic stories inside the shell of a larger narrative, they do it in very different ways.
- In DP, every episode tells a different story about a different character. It explores the lives of a wide variety of characters to make its points about human nature.
- In FF most episodes feature some kind of adventure which explores a theme or idea that ties back into the main characters and their relationship. Outside of episode 6, FF doesn't really tell actual stories in the same way that DP does.
- The set-up of DP is much cleaner. Chiyuki is essentially a woman with no memory who wakes up in this strange world and has to do this very weird job. That's the entire premise - there's no weird mysteries to unravel, besides who Chiyuki was back in 'the real world'. We learn about Chiyuki's past in a very focused story-arc right at the end of the series and the revelations about her life don't tie into a bunch of other mysteries that explain the rest of the series - they just illustrate it's themes.
- Meanwhile in FF there are multiple secret organisations with unclear origins and aims chasing shadowy McGuffins. Every character has a secret backstory and secret motivation that all ties back into an overly-messy, yet still completely opaque narrative. Everyone is lying all the time about everything for some reason, but don't worry because it Will All Make Sense Soon.