How do I stream live on twitch?

A friend would like to stream games on Twitch (live) from their Android tablet. Unfortunately we can't find the corresponding button 😅.

In the mobile app (picture 1) it is easy to find in the profile but on the tablet (picture 2) there's no corresponding button in the same place.

Someone got an idea?

Is the Twitch app up to date on the tablet? If not, just install the update.

Otherwise simply install streamlabs and connect to Twitch.

At least I assume that it is up to date, was only downloaded today.

I downloaded the Streamlabs but there's no option on the steaming screen to stream a mobile game. I only have access to my cameras there.

Between the microphone and the bell is a screen symbol with an arrow, so you can activate the screen share mode.