Using background processes in modern Drupal 8 9 10 to avoid slowing page loads

The Background Process module for Drupal 7 looks really cool but maintenance for it seems to have petered out even as users aimed to ease its transition to modern Drupal: The module_invoke_all() is not available on D8 [#3029375] |

Oh! No, i’m wrong, there’s a dev release for Drupal 8 and Drupal 9: