Why would you want to have the languageEmbedding option set to never?

Setting the languageEmbedding option to "never" is beneficial when your site is not multilingual. This configuration means that the URL structure will not include any language indicators, resulting in cleaner and more user-friendly URLs.

When a site is only intended for a single language, embedding language codes in URLs can complicate navigation and user experience without providing any value. It helps maintain a simpler URL structure which is easier for users to remember and share. Additionally, it can enhance SEO by avoiding unnecessary complexity in URL paths.

In contexts where a site serves multiple languages, alternative settings for language embedding can help clearly define content for different language speakers. However, such considerations are not relevant when the site operates exclusively in one language, justifying the choice to set languageEmbedding to "never."

The other options either relate to scenarios where multilingual support is necessary or suggest that performance would be impacted, which doesn't align with the purpose of the setting in question.