It goes without saying that when a new user lands on a Wikimedia project that does not use Latin as their default writing system, they should be able to type in the writing system that the project uses. For instance, if I open Arabic Wikipedia when not logged in or I have just created a new account, the default writing system on ULS should be Arabic and not Latin. Currently, it is Latin for all projects irrespective of what writing system(s) the project uses. (original text when this bug was reported)
To reproduce this issue (edited Jun 4):
1. Open any [[https://or.wikisource.org/w/index.php?title=%E0%AC%AA%E0%AD%83%E0%AC%B7%E0%AD%8D%E0%AC%A0%E0%AC%BE:Anabana.pdf/%E0%AD%A7%E0%AD%AA&action=edit |random page]] that on Odia Wikisource in private/incognito mode in a computer web browser.
2. Start typing in the input field.
When the default input should be the default input for Odia, it shows Latin. One would need to know that they need to Ctrl+M to be able to enable the ULS. (edited Jun 4)
(original text when this bug was reported) There might be some global contributors who would land on a project page and they might type without being logged in, but it would only make sense to assume that majority of the new users (either logged in from new account or not logged in) should type in the native script rather than Latin. Also, why Latin when more than 30% of world's written languages do not use Latin by default?
The second part of this issue lies with the top choices on ULS. I was logged in from an IP from India, Karnataka to be precise, and I was not using VPN. However the choices of languages goes in order of Hindi (uses Devanagari), Bengali, Telugu, Marathi (uses Devanagari) and Tamil. This does not make any sense either. Why geolocation would matter when the project uses a specific writing system (Odia in this case). The desirable choice on the top should be Odia and not Hindi in this case (and respective default writing system on ULS for the project for other similar projects).
{F31843531}
Unless there are some strong explanations for Latin, I would request for changing to the default ULS option for new account creators or users not logged in.