Long Long is ridiculous and often confusing.
Now, what about SIMD types?
What about 16bits floats?
Using the short size convention we have easy and logical answers.
The reason why new languages like Rust and Zig are using those conventions is not random, types naming (and stdlib) is a weak point of C (and C++).
Luckily they are not set in stone, we can choose different and reasonable conventions.