What you can do: https://www.patrick-breyer.de/en/posts/messaging-and-chat-control/#WhatYouCanDo
Contact your MEP: https://www.europarl.europa.eu/meps/en/home
Edit: Article linked is from 2002 (overview of why this legislation is bad), but it is coming up for a vote on the 19th see https://www.patrick-breyer.de/en/council-to-greenlight-chat-control-take-action-now/
The article is from May 19, 2022. I can find very little information about the vote of this Wednesday. While I don’t doubt its authenticity, I find it unlikely that it would pass. Last time they tried, doing it much more loudly and going as far as spreading disinformation campaigns on TV and in social media, they still completely failed at having the legislation passed. To me it looks like someone is finishing their mandate, so they are scrambling to show that they are doing the work they have been paid to do (by lobbist, obviously not by the people).
I hope I will not be proven wrong.
Good point about the article date, but it is coming up for a vote this week https://www.patrick-breyer.de/en/council-to-greenlight-chat-control-take-action-now/