These are not just static pictures he's provided. Here is an extended recording of the operation of his iPhone, showing him opening the discord app, and several others, using the iPhone magnify function, etc.
This was made using the apple "Record iPhone Screen" function.
Apple Support: How to record the screen on your iPhone, iPad, or iPod touch
The Alt-Right Took Over Twitter Through the Sheer Force of Its Obsessiveness
What you learn from this is that he has previously done large scale propaganda efforts on social media. He's good at it, he has lots of tools he's built to extend his reach.