It’s different outlets as well, you see. PBS doesn’t have a material about the most recent attack, but pretty much every recent material they have is negative for Israel, two straight out discussing genocide. Which the Russians also attempt to commit against Ukrainians denying them their right for self–determination, my dear Russian friend.
Interesting concept. There’s https://github.com/AsamK/signal-cli which specifically allows piping messages from Signal to another process, but at a glance its not clear if it allows for that with audio calls.