Set maxSize for primary in sharded cluster

https://docs.mongodb.com/manual/tutorial/manage-sharded-cluster-balancer/#change-the-maximum-storage-size-for-a-given-shard

I don’t want the primary node to fill up too quickly as it houses many unsharded collections with the sharded collections. Is there a way, similar to setting maxSize – to limit the maximum size of only the sharded collection data on the primary shard?