Magento 2.4.4 thumbnails doesn’t show

i installed magento 2.4.4 but i can’t see thumbnails on my website.

I followed a lot of suggestions on internet like disable old media gallery or type
php bin/magento media-gallery:sync
php bin/magento media-content:sync

and chmod etc but nothing works.

When i compile, i get this message :

Media files stored outside of ‘Media Gallery Allowed’ folders will not be available to the media gallery.

Someone could help me please ?

Thanks a lot by advance
Daniel