Ubuntu Developers Moving From IRC To Matrix For Real-Time Communication

… Beginning in March, Matrix will now be the official realtime communication channels for Ubuntu developers rather than using their Libera IRC channels. Ubuntu developers were recently discussing the topic and there was consensus that Matrix is preferred now in 2025 over IRC. …

I forgot that IRC is still being used.

I wonder which server they use. I've only had headaches trying to use Matrix for collaboration, especially if people were on different servers.