Is there a reason we don't have language specific admin modules?

I have tested this item ✅ successfully on 47ba9d3

Language is no use in back-end as it is not multingual and we do not filter display of modules (in this case) by language.
Same btw with the new admin menus feature.

Then surely we should remove the language setting in all the admin modules

Thinking about it - it would appear to me that the bug is that we dont filter the display of modules in the administrator based on language. If we don't then the only way we can have translated module titles for example is to use the less than optimal automatic titles which override the title set by the user

it would appear to me that the bug is that we dont filter the display of modules in the administrator based on language.

Bug? Not sure. Imagine backend modules filtered by language. What about an admin or superadmin access to these if their backend language is not the one used for some modules.

There is a possible other solution, it is using the access with specific groups, same as for the new admin menus. No need for language filtering here.

Then surely we should remove the language setting in all the admin modules

We can indeed, take off the language field from an admin module edit form.
It's quite easy. If you like I can add it to this PR.
We would get (the language field is, for site, between Ordering and Note):

As i said - on reflection i believe there should be the ability to filter modules on language

I already replied that it makes no sense to do so in backend.

i disagree

I have tested this item ✅ successfully on 47ba9d3

Patch ok for me.
Good idea also take off the language field from an admin module edit form.

RTC after two successful tests.

will add taking off lang field from admin modules form after siesta. lets wait for rtc. ?

we have no way of knowing that this language field is not being used on non core admin templates. we cant just remove it just because the core templates dont use it

The main question here is: Should the backend are multi language? Without the ability to have different admin menus I would clearly say no but it seems to me that we are going a path to make the backend also more configurable. Notwithstanding I think at the moment we not at the point to do all the other work for making the backend full multi language, I would say this is something we should reconsider for Joomla4. @wilsonge please take it from here :-)