maxChunkSizeInBytes in MongoDB 6.0.4

Hi, I thought that the MongoDB chunk size was increased to 128MB in the latest mongo. I’ve upgraded from 5 to 6 recent. When I check db.serverStatus() I see this entry:
maxChunkSizeInBytes: Long("67108864")

Do I need to do something to change the default chunk size?

I just noticed that I was running the command against a mongos router. When I run db.serverStatus() on a db server, it looks like it shows the correct number: maxChunkSizeInBytes: Long("134217728")

Is there any incompatibility that may be caused by different values in the mongos client and the mongod server?