Earlier quoted context omitted.
I agree it totally could be improved. Perhaps they're being careful? Elsewhere in the comments, someone showed that logged in users have more items in that bar ( https://imgur.com/llv2rtc ). That might not work so well in portrait.
I have 5 items in that bar on my Samsung Galaxy and I have no space for a label. As the screenshot shows the labels are there, just not visible until a certain breakpoint I agree that the UX could be improved and there is plenty of evidence to support that. On the other hand the edit icon is super discoverable and used without the label so I think the challenge with the language icon is 1) there are not many multilin…
Multilingual sites aren't rare at all. There is a conventional way to display a language selector: it's a button (usually a dropdown menu, if you click on it) with a national flag and the name of the language.
The big problem on mobile wikipedia is that wikipedia already has a well-established way to select the language you want to see the article in, and the mobile site completely removes it.