This patch builds on https://www.drupal.org/project/menu_block/issues/3089134#comment-14456177 📌 Ability to display "the menu selected by the page" Needs work and adds multilingual awareness to the MultipleMenuBlock.
AFAIK There is no multilingual support for current version either. ( to be confirmed )
Note: If none of the selected menus are appropriate for the current language, the block renders nothing, avoiding irrelevant menus.
Active
12.3
Code