They only show what the website gives them through opengraph tags. If the site doesn’t want to give up that information they can remove the opengraph tags. Even still, fair use should allow Facebook to summarise the contents of the link if they wanted to (but they don’t do that).

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lokar 2 hours ago | parent [-]

Sure, but then proper monopoly laws would ban most of what meta does.

	▲	marcosdumay 2 hours ago \| parent \| next [-]
		Sue through those, then. Making insane laws prohibiting people to talk about facts they've seen elsewhere won't help.
	▲	nradov an hour ago \| parent \| prev \| next [-]
		In what sense is Meta a monopoly? It seems like they have a huge amount of competition in the form of Google (YouTube), Microsoft (LinkedIn), Reddit, X, Snapchat, Telegram, TikTok, Signal, etc.
	▲	Manuel_D 2 hours ago \| parent \| prev [-]
		Where does Meta have a monopoly? TikTok, YouTube, Twitter, Reddit, etc. all compete with it