Yes, a Magento 2 Custom Form Builder Extension can populate customer attributes. This functionality allows you to capture detailed customer information through custom forms, which can then be mapped to specific customer attributes in your Magento 2 store backend, enhancing data accuracy and personalization.

Read this How to Install and Configure Custom Form Builder to Magento 2 to create forms using this extension.

Here are the few more resource to help you get most out of this Magento 2 Custom Form Builder Extension.

• How to Set Up and Enable Contact Us Form in Magento 2
• How to Validate Forms in Magento 2
• How to Add a Custom Field in Magento 2 Registration Form
• How to Customize Contact Us Form in Magento 2 Website
• Steps to Add Multi-select UI Dropdown in UI Form in Magento 2
• How to Add Date of Birth Field in Customer Registration Form in Magento 2
• How to Create Admin Grid and Form without UI Component in Magento 2
• How to Create UI Component Grid and Form in Magento 2