About your revert of my edit.
If you have specific comments/claims to my edit, please explain them. If not, please return the template to my version. Now on the main page the phrase "Other languages:" is always displayed in English. After my edit, this is synchronized with the displayed language version (if translations is provided), or displayed in the user interface language.
When I checked the source, the Template:Languages did not have a parameter '2'. That is why I reverted your changes and suggested using sandbox pages for prototypes of such high-impact pages.
However, I agree with the idea of synchronizing the phrase with the user interface language.
This change is on the one hand small and on the other hand difficult to verify outside of the current usage chain. That's why I did it on the Main Page directly, and also in the real templates.
Using {{ll|Project:Language policy|{{int:tpt-languages-legend/{{SUBPAGENAME}}}}}} in Template:Languages also justified - IMHO, there is necessary to first use a translation that matches the current language version of the subpage being called (regardless of the interface language). And then, if there is no translation, in the user interface language.
Check if this change on Template:Languages about 4 days ago resolved the issue.
