Expected :
https://haus.oekozenter.lu/fr/

$haus_frontpageid = apply_filters( "wpml_object_id", 3027, "page", true )
apply_filters( "wpml_permalink", get_blog_permalink(13, $haus_frontpageid), null, true )
https://haus.oekozenter.lu/accueil/ // Wrong

apply_filters( "wpml_permalink", get_blog_permalink(13, $haus_frontpageid), "fr", true )
https://haus.oekozenter.lu/accueil/ // Wrong

get_home_url(13)
https://haus.oekozenter.lu/ // Wrong

apply_filters( "wpml_permalink", "get_home_url(13)", "fr" )
https://haus.oekozenter.lu/ // Wrong

apply_filters( "wpml_permalink", "get_home_url(13)", "fr", true )
https://haus.oekozenter.lu/ // Wrong

apply_filters( "wpml_permalink", "https://haus.oekozenter.lu/de/", "fr" )
https://haus.oekozenter.lu/de/ // Wrong

apply_filters( "wpml_permalink", "https://haus.oekozenter.lu/de/", "fr", true )
https://haus.oekozenter.lu/de/ // Wrong

apply_filters( "wpml_home_url", get_home_url(13) )
https://www.oekozenter.lu/fr/ // Wrong