Twitch stream chat?

My buddy often streams on Twitch but with him the chat is only shown on the phone D:

Be happy about any answer

What is he streaming with? OBS, Xsplit, Streamlabs,?

Did he install an extension that can block chat? If he uses an add blocker, maybe turn it off and see if it works.

There are pages where you can list several streams at once and the chat is also included, but the chat does not work there with some browsers, it may also have a problem.