Default Image field field_image is not transformed into a Media field

All my D7 custom image fields were transformed on D10 except the field_image field which is created by default by Drupal 7 when choosing Standard on install.
How can I make this field also transformed into a Media field?
Or should I create a new Media field on D10 and edit the migration yml file (which is?) to map this new field with field_image?