Note: The Jq manuals, unlike the tutorial, are versioned. The link https://stedolan.github.io/jq/manual/v1.6/ is currently the best target for the Jq version 1.6, downloaded by the extension. https://stedolan.github.io/jq/manual/ without the version points to the dev version, with some documented features not yet even implemented.
https://marketplace.visualstudio.com/items?itemName=davidnussio.vscode-jq-playground Overview, second paragraph from top
Both "tutorial" and "manual" are links pointing to the same Jq tutorial page.
Note: The Jq manuals, unlike the tutorial, are versioned. The link https://stedolan.github.io/jq/manual/v1.6/ is currently the best target for the Jq version 1.6, downloaded by the extension. https://stedolan.github.io/jq/manual/ without the version points to the dev version, with some documented features not yet even implemented.