When publishing from Designer you can choose Custom domain and/or weblog domain which means you can use the webflow domain as a testing site before publishing to the main site.
Why can’t you do this in the Editor where it publishes to both the custom and webflow domain. If you cannot select in the Editor which domain to publish to, surely it makes more sense to publish to the webflow domain (test site) only, and then control the publishing to the main site from the designer?
Here is my site Read-Only: LINK
(how to share your site Read-Only link)