There are definitely LTS distros where the official packages are not updated ASAP. Npm lets package authors publish new versions to all users immediately. Anything that doesn’t allow that is better. Some distros only incorporate patch/security updates for example.

AUR is worse, in that there may not be official authors and you can take over releases of a package. Like, you’ll have random users publishing the release for some application that doesn’t have their own Arch release. And if that user disappears, someone else may take it over