Here’s something that works
I’m not a code master too, but maybe the code is a good solution.
You need to open the designer > place the code inside of the pages custom code area (before closing body tag) > publish only to the Webflow subdomain.
Here’s a screen record > https://www.useloom.com/share/bde9cd9787064d92a2ef041ffd31d8c8
You can place the code in every page and make the page redirect to the main domain page.
Home page Webflow subdomain
About page Webflow subdomain
You get the point.
If you need more help feel free to reach out.