Exercise 2: Why "Just Use Settings for Everything" Isn't Yet Reliable — Possible Solution
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WHAT THE MIGRATION TABLE ACTUALLY SHOWS
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Per this chapter's own table, migration status varies genuinely by
area - "Display, Sound, Personalization, Accounts" are "fully
migrated," "network adapters, some printer management" are "partially
migrated," with "a basic view... in Settings" while "advanced
configuration still opens the underlying Control Panel dialog," and
"advanced user/group management, some legacy hardware configuration"
are "not migrated at all," with Control Panel or a dedicated legacy
tool remaining "the only interface."

WHY THIS RULES OUT A BLANKET "USE SETTINGS ONLY" RULE
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If migration status were uniform - either everything had moved to
Settings or nothing had - a single blanket rule would work fine. But
this chapter's own table shows three genuinely different states
coexisting at once. A rule that only accounts for the fully-migrated
category ("Display, Sound, Personalization, Accounts") will fail
outright for the not-migrated category, and will give an incomplete
answer for the partially-migrated category, where Settings shows only
a "basic view" rather than the full configuration options.

THE PARTIALLY-MIGRATED CASE IS THE MOST DECEPTIVE ONE
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The partially-migrated category is arguably the riskiest to get wrong
in practice - Settings does show something for network adapters, which
could easily be mistaken for the complete picture. Per this chapter,
that's only "a basic view," with genuinely advanced configuration still
requiring the underlying Control Panel dialog. Someone following a
"Settings only" rule here wouldn't hit an obvious dead end the way
they would with the fully-Control-Panel-only category - they'd simply
never discover the deeper options exist at all.

WHY THIS MATTERS FOR REAL TROUBLESHOOTING
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A support engineer who assumes Settings alone is sufficient will
correctly handle the fully-migrated cases, hit a visible wall on the
not-migrated cases, and - most dangerously - silently miss available
options in the partially-migrated cases without any error to signal
the gap.

WHY THIS WORKS AS AN ANSWER
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It cites all three migration states from this chapter's own table,
explains why a single blanket rule can't account for genuinely
different statuses coexisting, and specifically flags the
partially-migrated case as the one where relying on Settings alone
fails silently rather than obviously.