Can I embed the form to Magento 2.3?

What about Magento 2.3? These steps are for an older version.

In Magento 2.3, there should be a way where you can insert an HTML code. You can use the iFrame code for that, here's a guide: Getting-the-Form-iFrame-Code.

You may also refer to this page: Adding a New Page.

that version of the WYSIWYG editor is no longer supported

Kindly check our instructions in embedding the form into Magento in our Published PlatForms.

If you're using the new Page Builder for Magento 2.3, you may try using the HTML block code to insert the Iframe code.

Please give it a try and let us know if you have further questions.