Archives help us achieve two essential goals: decrease file size and unite a group of files into a single package. The first goal relies heavily on a compression algorithm and thus differs from format to format, whereas the second goal is equally achievable by all popular archivers on the market.
The two factor authentication process that Apple initiated a few years ago has become commonplace by now, but you might choose to reduce this complexity and turn off two factor authentication from your account for a variety of reasons too.