Title tags that are too long can be truncated in the search results, or rewritten altogether.
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Updates to rich snippets, Google Search Central Blog
Featured snippets will no longer be repeated on Google search results. What does this mean for you?
How to Find and Fix Rich Snippet Errors - CommerceGurus
How to Rank for Google Featured Snippets [Step-by-Step Guide]
How to Get a Featured Snippet on Google
What Is Featured Snippet (And How to Optimize for It)?
Title Too Long for Google Snippet