How can I see samples per label or entity labeled?

There's some way to show the number of samples annotated by entity type or label?

Have you seen this answer?

I usually just export the data to a file, say annotated.jsonl and then just run Python scripts to make summaries. If you're dealing with nested lists of data you may prefer to use Clumper instead of Pandas (beware that Clumper is much slower though).

If you're looking for some basic stats then the stats command may be sufficient.