Yes, it's published and Notification Body is set as expression.
Email is delivered with body:

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Matthew Williams
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Original Message:
Sent: 10-28-2024 23:59
From: Paulo Mesquita
Subject: Expressions with send notification with Workflows
The syntax looks correct, just need to make sure the workflow was published and "Notification Body" field is set as an expression.
The "\n" should jump to the next line.
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Paulo Mesquita
Solutions Consultant
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