Does the module also display disabled pages?

No, for products, categories, CMS pages, brands and suppliers managed by PrestaShop: disabled items are neither offered in the module’s corresponding selection lists nor selected when generating sitemaps.

An active page can still be excluded from the sitemap through the module’s settings. A page being active and being included in the sitemap are two separate things.

The custom links you add manually do not benefit from this activation check. Check that each URL is accessible and points to a page you want to appear in search engine results.

If a disabled URL still appears in a previously generated file, regenerate the sitemaps. If you have enabled sitemap generation by cron task, the update depends on that task running.