bug#51247: 28.0.60; Insufficient documentation of tab-bar.el internal functions

[Juri Linkov]

>> >> It will display tabs or buttons from these menu items.
>> >
>> > When will it be tabs and when will it be buttons?
>>
>> Tabs are buttons that switch window configurations.
>
> But how do I explain in the doc string to the future programmers what
> they should do to get tabs and what they should do to get buttons that
> drop a menu?

You don't need to explain about buttons that drop a menu.
This is irrelevant for the description of tab-bar-format.
Just imagine there is no tab-bar-format-menu-global
that uses own unrelated menu items.