Yes, for sure. They are both distributed object stores and share inspiration from the Linda/tuplespace lineage, as well as relational and document databases in FaunaDB's case.

FaunaDB supports function execution in the database, if the functions are written in FQL. It has a much more powerful index system and consistency model than Gemstone/Gemfire/Geode and is designed for synchronous global replication.

However, unlike Geode it is not an in-memory system, so it is not appropriate to use as a cache.