Yes, that's my understanding of xdg. But I have no idea what this means for Ungoogled Chromium package. Base Chromium itself isn't degoogled. It has most of the Google service's active and enabled. Only a minor subset, like bookmark sync is disabled (but technically available). With Ungoogled Chromium, most (not all) Google dependencies are patched and inactive. At least this was the case as I last checked it. Since I prefer a mostly Google free environment, I would like to use Ungoogled Chromium for testing and a patched Firefox browser for standard web things.