As part of the work on the MinT for Wiki Readers MVP (T359072), an option to "Explore languages" (T359863) is provided so that users can identify the languages where there is more content available, and which sections are covered. In this way, they can decide which language version to pick to machine translate and learn the most relevant aspects on the topic.

The initial implementation is not supporting the following aspect from the original spec:

The elements on top (comprising the "Header" and the "Access to all languages") are sticky. Scrolling will keep them visible on top.

The mockup below illustrates the sticky behavior for the header:

However, the current implementation does not keep the header sticky as illustrated in the video below: