In Odoo 18, the dog-ear badge on products is a new UI feature. To remove or toggle it off, try the following methods:

1. Disable in Settings (If Available)

• Go to Website → Configuration → Settings.
• Look for an option related to Product Labels/Badges and disable it.

2. Hide via CSS

If no setting exists, you can hide it using CSS:

1. Go to Website → Customize → Edit HTML/CSS.
2. Add the following CSS in your custom theme:

   css
   CopyEdit
   .o_product_badge {
       display: none !important;
   }
   

3. Save and refresh the page.

3. Remove via XML/QWeb (Advanced)

If it's rendered via QWeb, override the template:

• Locate the template (e.g., website_sale.product_badge).
• Use a custom module or website customization to remove the badge element.