Hi! Yes, from_dict does not currently support PyArrow arrays as column values, but it should, so I鈥檒l fix this for the next release.
To fix the overflow error, we need to merge support LargeListArray in pyarrow by xwwwwww 路 Pull Request #4800 路 huggingface/datasets 路 GitHub, which adds support for the large lists. However, before merging it, we need to come up with a cleaner API for large lists. I hope to find some time to address this before Datasets 3.0.