Some VS Code Extensions are Missing

I’m using the VS Code Addon to edit files on my Home Assistant OS installation. I like it very much. Seems to essentially be VS Code running within a Docker container. It’s worked very well. My only confusion is that some extensions seems to be missing. Specifically, I’m looking for “Fold Plus” by dakara. The id is “dakara.dakara-foldplus”. Just doesn’t show up when I search for an extension. Any idea why that might be ?