> A good language will also have "break" from any block of code, such that the break can also carry a return value, AND the break can be from any number of nested blocks, which would generally mean that blocks can be labelled / named. And also of course that any block can have a return value.

Even in a language that is not "good" by your definition... you have basically just described a function. A wrapper function around a sub-function that has early returns does everything you want. I use this pattern in C all of the time.

It is more inconvenient to make a wrapper function for a function than to make a wrapper block for a block, especially in C where you can't lexically nest functions (not counting GNU extensions).

Naturally all programming languages are equivalent, but some are more convenient than others. See the title of this post "Cognitive load is what matters".