Even when bookmarks are disabled, you can still add to bookmarks by dragging and dropping.

<img width="1920" height="1080" alt="Image" src="https://github.com/user-attachments/assets/1c5ce97f-9ada-4f97-9dbf-d4d362ac145b" />

<img width="1920" height="1080" alt="Image" src="https://github.com/user-attachments/assets/d36a1bec-2c6f-43d9-9c4b-85bef8c6c14f" />

As shown in the image, this should be an error.