How to filter types of Webforms with Views
You can enable Webform functionality on all the different content types. You don't have to use the Webform content type which comes pre-packaged with the module.

Make a new content type, and go to: /admin/config/content/webform and enable webform functionality on the new content type you created. Then add the webform to it.

Then you just need to filter by content type on Views.