Deprecation warnings when installing command globally

[hantsy]

npm warn deprecated [email protected]: This module is not supported, and leaks memory. Do not use it. Check out lru-cache if you want a good and tested way to coalesce async requests by a key value, which is much more comprehensive and powerful.
npm warn deprecated [email protected]: This package is no longer supported.
npm warn deprecated [email protected]: This package is no longer supported.
npm warn deprecated [email protected]: Rimraf versions prior to v4 are no longer supported
npm warn deprecated [email protected]: Glob versions prior to v9 are no longer supported
npm warn deprecated [email protected]: This package is no longer supported.
npm warn deprecated [email protected]: This version of tar is no longer supported, and will not receive security updates. Please upgrade asap.

Found deprecated info above when installing create-react-app. Is there any reason to keep the legacy packages?