Really interesting episode, not the "kids these days are on their phones all the time" kind one might have thought watching the trailer, but instead focuses on a much more serious issue surrounding the mentality of certain groups, and how those specific echo chambers function.
It's definitely an episode that is made by its ending. The hyperbole of the allegory might seem too exaggerated at first. But when things start falling into place it becomes clear that it serves a purpose and helps highlight the main message.
The final part is what makes the whole episode really work, for me the ending was quite fitting, given the point that the story was trying to get across, and Ncuti Gatwa was phenomenal in his performance, especially during the final scene.