[redwards510]

Your list is incomplete. From the most recent VSCode changelog @ https://code.visualstudio.com/updates/v1_26#_offline-mode:

Offline mode

Some users do not want any outgoing network requests from VS Code unless they specifically invoke features that require online access. To support this offline mode, we have added new settings to turn off features such as automatic extension update checking, querying settings for A/B experiments, and fetching of online data for auto-completions.

Below is the complete list of settings to control VS Code features that make network requests:

  update.channel
  update.showReleaseNotes
  extensions.autoupdate
  extensions.autocheckUpdates
  extensions.showRecommendationsOnlyOnDemand
  workbench.settings.enableNaturalLanguageSearch
  workbench.enableExperiments
  telemetry.enableTelemetry
  telemetry.enableCrashReporter
  git.autofetch
  npm.fetchOnlinePackageInfo