There are use cases where a distributed database is a better tool, the big advantages you can scale multiple nodes and have a very robust network with no single

There are use cases where a distributed database is a better tool, the big advantages you can scale multiple nodes and have a very robust network with no single point of failure and you no longer have to worry about the individual security of each node. The downside you have to replicate all the database in each node or at least in several nodes of the network, you can have a sub-node structure. If you depend on computation power algo for synchronization you can have very expensive hardware and electrical bill. If you use others alternatives like prove of stake you can do it with very modest hardware.