Hi,

As a final user without backend access, creating a dynamic domain filter for x_studio_product_type_1 based on the selected value in x_studio_product_1 is challenging. Your options are limited to Odoo Studio's interface (if available) or standard Odoo features, which may not fully support referencing related fields in domain expressions. The domain [("x_studio_product_root", "=", x_studio_product_type_1)] won't work because it compares a field to another field instead of a value and lacks the necessary context.

To address this, explore Odoo Studio's domain editing features to see if you can reference the value of x_studio_product_1. Simplify the relationship between products and product types if possible, or request assistance from someone with backend access to create a custom module. As a last resort, consider a manual workaround, such as a naming convention or user training.