The desktop web browser experience of twitch.tv and supporting sites, officially support the latest two versions of Google Chrome, the latest two versions of Mozilla Firefox, the most recent version of Microsoft Edge, and the most recent version of Apple Safari.
From the twitch pages
https://help.twitch.tv/s/article/supported-browsers?language=en_US
What’s your browser version OP, so we can rule out whether it’s just a version issue