About [[MediaWiki:Mobile-frontend-save-settings/en]]
String length restrictions are a Bad Thing [tm] in Globalized interfaces. Designers should come up with a solution in case a string is long. "Save settings" vs. "Save" is IMO a no-brainer if there's only one save button in the current context.
Or make a suggestion for change here, so that someone can create a patch for you when there is (some form of) consensus about that proposed change.
Sorry for the lack of my activity on this ticket - I'm just not sure how to fix it. String length restrictions unfortunately /are/ a thing on mobile especially when it comes to buttons. In the example of save settings ideally the string should be one word. As Siebrand points out 'save' should probably be sufficient in the context as it only appears on the settings page. Do we need to update the qqq code to reflect this?