Exercise 2: Planning to Use CentOS Stream as "a Free RHEL" — Possible Solution
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WHY THIS PLAN NEEDS UPDATING
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Per Chapter 3, CentOS Stream's own role changed in 2020 - it "sits...
as a public 'midstream' between Fedora and RHEL, previewing what the
next RHEL minor version will actually contain rather than rebuilding
what's already shipped." Since then, CentOS Stream is no longer a
free rebuild of an already-finished, stable RHEL release - it's a
preview of RHEL's still-in-development next version, meaning it
carries a genuinely different, less stable risk profile than what
"CentOS" used to mean before that shift.

WHY THE ORIGINAL "FREE RHEL REBUILD" ROLE STILL EXISTS, JUST ELSEWHERE
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Per this chapter's own warn-box, "in 2023, Red Hat restricted public
access to RHEL's own source code further, moving it behind a customer
portal rather than fully open git repositories as before... this
directly caused the rise of Rocky Linux and AlmaLinux as the new free,
RHEL-compatible rebuilds - the role CentOS itself used to play before
2020." The specific role this person actually wants - a free, stable,
RHEL-compatible operating system rebuilt from a finished release - now
belongs to Rocky Linux and AlmaLinux, not CentOS Stream.

WHY CONFLATING THE TWO WOULD BE A REAL MISTAKE
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Per this chapter, "anyone today looking for 'a free, RHEL-compatible
OS' needs to know CentOS Stream isn't that anymore; Rocky Linux and
AlmaLinux are the actual modern answer." Deploying CentOS Stream under
the mistaken belief that it behaves like the old, stable, downstream-
rebuild CentOS would mean running midstream, still-in-development code
in a context expecting finished, tested RHEL-equivalent stability - a
genuine mismatch between expectation and what's actually being run.

THE CORRECTED PLAN
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The person should choose Rocky Linux or AlmaLinux instead, since those
projects specifically fill the free, stable, RHEL-compatible role
CentOS itself used to occupy before its own 2020 shift - matching what
this person actually wants far more closely than CentOS Stream does
today.

WHY THIS WORKS AS AN ANSWER
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It restates CentOS Stream's own changed 2020 role from Chapter 3,
connects that to this chapter's own account of the 2023 RHEL source-
access change and the rise of Rocky Linux/AlmaLinux, and explains
precisely why the person's original plan doesn't match what they
actually want, naming the specific corrected choice.