This link has been discussed earlier in [0], Chat Control posts that have gained traction are for e.g. [1] and [2]. Patrick Breyer has a good summary and timeline of this proposal and its history [3]

[0] https://news.ycombinator.com/item?id=35094627

[1] https://news.ycombinator.com/item?id=31329368

[2] https://news.ycombinator.com/item?id=29066894

[3] https://www.patrick-breyer.de/en/posts/chat-control/