As reported at https://en.wikipedia.org/wiki/Wikipedia:Village_pump_(technical)#Recent_changes_concerning_mobiles , flag icons and the text following them are rendering with an apparent newline on mobile web Wikipedia on one or more articles. See, for example, the following, as reported:
As a reader, I want to see the flag images and and text on the same line, so that I can scan the flags or the text with ease.
Generally, we shouldn't be asking for across-the-board wikitext updates, of course!
At the conclusion of this task, we should have a code fix in mind (maybe so simple it's done?), plus communicate out what's happening next on the village pump topic.