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In Debian Linux after running sudo apt-get update, all users asking for info, apt-cache show package_name, get the system-wide saved info. No need to access the Internet or local apt cache server again.

In contrast, on both Centos (v7-8) and Fedora (v32), I've noticed that even after sudo yum upgrade (or dnf), if a user types yum info package_name (or dnf) all repos are read and cached again. The same happens if another user tries, etc. Apparently the caching is user based, not system-wide.

Is my assumption correct? Any way to make yum/dnf behave like apt?

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Is my assumption correct?

Yes. This is described in the dnf manpage:

DNF uses a separate cache for each user under which it executes. The cache for the root user is called the system cache. This switch allows a regular user read-only access to the system cache, which usually is more fresh than the user’s and thus he does not have to wait for metadata sync.

Any way to make yum/dnf behave like apt?

Yes; you can make dnf update the system cache by running dnf mc as root, and then run it as non-root with the -C (or --cacheonly) switch:

Run entirely from system cache, don’t update the cache and use it even in case it is expired.

The user caches will be ignored and won’t be updated.

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