Straw Poll: What is the most widely deployed RDF serialization in 2020?

Options:

1. RDF/XML

2. Turtle

3. N Triples (e.g. in a quad store)

4. JSON-LD

5. Structured Data Blocks in Script tags aka "Data Islands" (e.g. used in
SEO)*

6. Other

The word "most widely" here is open to interpretation, and I would love to
hear subjective or anecdotal points of view.  Looking for meaningful
deployments.

Any links to stats would be really helpful!

Thanks!