films-symfony-4-2/config/packages/twig.yaml

twig:
    file_name_pattern: '*.twig'
    default_path: '%kernel.project_dir%/templates'
    debug: '%kernel.debug%'
    strict_variables: '%kernel.debug%'
    form_themes: ['bootstrap_5_layout.html.twig']

when@test:
    twig:
        strict_variables: true