The wpforms_display_submit_after action fires just after the submit button element is displayed.
wpforms_display_submit_before
The wpforms_display_submit_before action fires immediately before the submit button element is displayed.
wpforms_process_before
The wpforms_process_before fires after a form’s submit button is clicked, but before form data is validated or cleaned.
wpforms_frontend_output_before
The wpforms_frontend_output_before action fires before a form is displayed on the site's frontend, only if the form exists and contains fields.
How to Remove “Add Form” button from TinyMCE editor
This article will show you how to use PHP to remove the Add Form button that appears on WordPress posts and pages when using the Classic Editor.
wpforms_display_media_button
The wpforms_display_media_button filter is used to return true or false to display or hide the Add Form button on the Classic Editor.