Could it be somehow possible to hide the language menu for the pages which are not being translated. That would be more logical user experience.
We are using Webflow. Language menu script is being inserted on site level. We could perhaps drop it to page level but that would mean inserting it separately to every page with translations. Possibly slowing the site use?
You can try editing the code of JS snippet we use for this integration, but Iām not sure whether one or another language can be totally removed from switcher.