`while-elif-else`, `for-elif-else`, `try-except-elif-else`

(You could have provided links for the mentioned use cases.)

I looked at some of the use cases and I only saw guards. There can be many guards in a single else clause, which the proposed syntax could not handle.

for loop:
    for loop:
        if cond:
            break

    else:
        if not guard:
            code
            # continue

        if not guard_2:
            code
            continue
        
        code

The situation is that the usage of these else clauses is very limited. I haven’t encountered them in practice, and if I do, I often have to refer to Python documentation. Then, I add comments like # no break or # no exception, which disrupts the flow of code reading. I am opposed to the else clause, and elif wouldn’t improve it.