10/10 ! For people ask for the broken chat >>

"If you have problems with chat, then open your browser settings and allow to accept cookies, including third-party cookies, or add an address https://twitch.tv to exceptions. If this does not help, try to select a different chat version in the player settings. Also, chat can be broken by: other browser extensions, ad blockers, firewalls, antiviruses. To diagnose the problem, try turning off all this shit. Here are the Privacy Badger extension settings, which do not interfere with chat."