Where did you get that quote from? Is it somewhere visible or inscribed into the transaction or what? How can an average Joe like me see it and, generally speaking, see if some message is inscribed into a bitcoin transaction?
Yeah it's inscribed in the first couple of OP_RETURN transactions in the block. If you go to the link OP posted then Mempool.space shows a bunch of transactions that look like
UNKNOWN
OP_RETURN "four or five words here"
It's just below the Coinbase transaction, you can't miss it.
But you can see it on any other block explorer that displays OP_RETURN stuff, like Blockstream.
It's split across several transactions because OP_RETURN has a very small data limit.