only in patch2:
unchanged:
--- a/core/modules/field/migration_templates/d6_field_formatter_settings.yml
+++ b/core/modules/field/migration_templates/d6_field_formatter_settings.yml
@@ -64,6 +64,9 @@ process:
           - type
           - 'display_settings/format'
         map:
+          link:
+            default: link
+            absolute: link
           number_integer:
             default: number_integer
             us_0: number_integer