Even the EU council's legal service thinks the law as-proposed is probably incompatible with Article 7 and 8:
> The CLS concludes that, in the light of the case law of the Court of Justice at this stage, the regime of the detection order, as currently provided for by the proposed Regulation with regard to interpersonal communications, constitutes a particularly serious limitation to the rights to privacy and personal data protection enshrined in Article 7 and 8 of the Charter.
https://data.consilium.europa.eu/doc/document/ST-8787-2023-I...
I think there are variants of the ChatControl proposal which were clearly problematic, but the different variations of the proposal try to toe the line since. This report talks to the 2022 era proposal.