One limitation for KZG renaming will be that some of the actual methods live in another package (https://github.com/ethereumjs/kzg-wasm) @acolytec3 would you be able to do the renaming on that side & publish a new release? I can then update the monorepo dep and adjust.

What should we do with this issue/PR. The new kzg library in micro-eth-signer we're using still has one instance of blobToKzgCommitment and that is reflected in our interface so we don't have to carry a wrapper construct around everywhere. Can we be content with that one discrepancy and make KZG capitalized everywhere else it appears?

Sure

This has been addressed (with one exception as mentioned above by @acolytec3 ) by #3674, therefore closing this.