VS Code Settings Sync remote not deleting

I need my VS Code Settings Sync remote storage to be completely reset/deleted without enabling Settings Sync again on my current local installation.

I previously:

1. Turned off Settings Sync.
2. Selected the option to delete/clear all cloud data.
3. Revoked Visual Studio Code access from my GitHub account.
4. Completely removed VS Code local settings/data from macOS.
5. Reinstalled VS Code from scratch and manually rebuilt my configuration.

Settings Sync remained disabled during this clean setup.

When I later tried enabling Settings Sync again with the same GitHub account, VS Code unexpectedly found my old synchronized data: old extensions were restored and I was prompted to merge with my previous settings.

This indicates that the remote Settings Sync data was not actually deleted, despite having selected the "clear all cloud data" option before reinstalling.

I have now restored my clean local VS Code configuration from backup and Settings Sync is currently OFF.

I do **not** want to enable Settings Sync again until the existing server-side data has been completely deleted, because I don't want the stale remote state to modify my current local installation.

Could you please:

- completely delete/reset the Settings Sync data associated with my GitHub-authenticated VS Code account on the server side; or
- provide a supported way to perform a remote-only Settings Sync reset without enabling synchronization on my local VS Code installation?

According to the VS Code documentation, clearing all cloud data should make the next Settings Sync activation behave like a first-time setup, which did not happen in my case.

Environment:
- macOS 26.6
- VS Code Stable 1.137.0
- Authentication provider: GitHub
- Settings Sync currently disabled