Unbind date/time and number formatting from language settings

While date and time are bound to the language setting,

Please, unbind it then? Technically, there's absolutely no reason to keep it dependant on the language of the interface. The app can still be English and display the date time in different formats. It's not perfect (using 12-hours times), but better than what you have now. For example:

console.log(new Intl.DateTimeFormat('de-DE', { dateStyle: 'short', timeStyle: 'short' }).format(new Date(Date.UTC(2020, 11, 20, 3, 23, 16, 738))));

Returns:

20.12.20, 04:23

Now you could provide a setting in the UI that says: "Date/Time Formatting Preference" and give the user the options to choose a different language there e.g., German.

This can then be stored in a variable e.g., dtFormat and then you would just use this variable whenever you format a date/time, instead of the variable that stores what language the is in.

We currently have an issue filed with the development team for customers who are not seeing their set date/time properly following the system preferences they've set up.

This contradicts with your previous statement that date and time are bound to the language setting. Is it bound or not? Because my system language is english, I just configured the date/time format to German. From what I gather, if you fix that problem, it will have no effect on my feature request.