Adding a fullscreen option to ChatGPT on PC would significantly improve user experience by enhancing focus and readability. A fullscreen mode would eliminate distractions from other applications, allowing users to engage more deeply in conversations. It would also be beneficial for long-form reading, coding, and detailed discussions, as it would provide a larger workspace. Additionally, users with smaller screens or high-resolution displays could benefit from better text scaling and visibility. Implementing this feature could be done with a simple toggle button, allowing users to switch between standard and fullscreen views as needed. This would also align ChatGPT with other productivity tools that offer similar features. A fullscreen mode could improve accessibility by making content easier to read and interact with, especially for those who need larger text. Overall, this small but impactful addition would create a more immersive and user-friendly experience for those using ChatGPT for work, study, or extended conversations.