Very small common chunks being created during build process

[himanshu-dixit]

We have recently shifted to NextJS from the custom react server at https://headout.com. The problem is there are too many chunks that are being built, and that's great considering parallel loading.
But when we're creating bundle there are lot of small chunks, that can be merged.

I skimmed through the NextJS source and the granular chunking limit is 20Kb.

next.js/packages/next/build/webpack-config.ts

Line 429 in bef9b56

minSize: 20000,

Is this an unintentional behavior or a bug? What can be done to improve it.

A sample screenshots