Any idea where we can find that information (those who proposed and voted on it)?
Hopefully other EU countries has similar sites. If you have a local Pirate Party, that might be a good place to start. I'm guessing they would link such a site.
The might be a list of votes there somewhere.
[1]: https://www.patrick-breyer.de/en/chatcontrol-1-0-pirates-con...
[2]: https://www.patrick-breyer.de/en/european-parliament-o-exten...
This measure is still being developed by the European Council, which is a non-legislative body.
https://en.wikipedia.org/wiki/European_Council
It would have to be submitted to and taken up by the Parliament for the information you want to exist in a meaningful form.
Parliament is not keen:
https://en.wikipedia.org/wiki/Regulation_to_Prevent_and_Comb...
The last attempts of this have been stopped by European Parliament so we need to make sure the new one stops it as well.