Tempo's chaotic-ness actually works in its favor. I felt the acapella bridge was a fitting part of the song. The only complaint I have is the bed squeaks, but that's a production choice so...
I like Idol and RBB fine, but for RBB, I don't know where the verses end and the prechorus/ chorus begin. Idol's transitions are somewhat jarring, but it's a good song (I feel this is the least "messy" song out of the four).
Other chaotic songs are iKON's Bling Bling and EXID's Lie, maybe. I like both of those too.