How does this affect signal users ?
📣Official statement: the new EU chat controls proposal for mass scanning is the same old surveillance with new branding.
Whether you call it a backdoor, a front door, or “upload moderation” it undermines encryption & creates significant vulnerabilities
https://signal.org/blog/pdfs/upload-moderation.pdf

Discussion
Just like with the online safety bill, Signal will (legally speaking) leave the EU. Should EU countries try to block Signal they'll do what they can to let us still use signal, see #iRanASignalProxy for example
Signal is FOSs? If so they have no legs
Signal is licensed under the AGPLv3 and as such, Free and Open Source.
"Signal is licensed under the AGPLv3 and as such, Free and Open Source."
Correct. Unfortunately it's also rigidly centralised. So state-level actors only need to block one set of servers and it's unusable (eg Signal is very hard to use in China due to the Great Firewall). Matrix is a better bet, both E2EE and Free and Open Source software, *and* a decentralised protocol anyone can implement.