Hi there! I am currently dealing with a similar issue around a multi-regional site and a CMS. I was planning on doing all the regional sites in one project, designing the US version first completely with components, then duplicating them for each region and manually swapping content between components so that the overall design can just be updated from the original component.
This has worked well for me so far, but I ran into a problem with the CMS. We have a big blog with ~250 posts, and I would like each of the posts to have a regional version. It would appear that there is no clean way to present one CMS item multiple different ways natively in Webflow.
Polyflow looked like the perfect solution based on what I have read, unfortunately they are not currently accepting new signups, which has me concerned about their longevity as a solution… And also leaves me looking for another third party solution that will allow for manual regionalization of content.