Best underlying filesystem type for the IPFS repository?

Hello, I’m currently exploring different filesystems to be used underneath the IPFS repository. For example, your repo can be flatfs, badgerds, etc… however they have to be stored ontop of a filesystem. Currently I’m just using EXT4 however I’m starting to ponder additional options.

Right now, I’m exploring Ceph, and GlusterFS however would these be beneficial at all? Or would they just lead to increased complications?