What are some common pitfalls when handling errors with `Promise.all()`?

Common pitfalls include: 1) Not handling errors within individual promises before passing them to `Promise.all()`, leading to unexpected failures. 2) Assuming that `Promise.all()` will wait for all promises to complete even if some reject. 3) Only catching the first rejection and ignoring subsequent errors. 4) Not using `Promise.allSettled()` when you need to know the outcome of *all* promises, regardless of success or failure.