I think I found it.
Title I Article 76 Section 3 says:
"The operating rules of [every] trading platform for crypto-assets shall prevent the admission to trading of crypto-assets that have an inbuilt anonymisation function unless the holders of those crypto-assets and their transaction history can be identified by the crypto-asset service providers operating a trading platform for crypto-assets."
Full text here: https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32023R1114&qid=1735616578262
