Since the last update a few days back, the maximize window icon (middle of the top right three buttons) is greyed out. You can maximize by dragging the corner of the window to expand, but it’s not as easy.
Faced the same issue. Either right click on the bar and disable “Always on Top” or what I did, I opened Power Toys and I disabled “Always on Top” and right clicked in the menu bar on Chatgpt and quit the app and restarted Chatgpt. Now, I can resize and make it full screen again. I hope this helps.
It worked once but now it is grayed out again and I can’t maximize it.
Before this update there was an option to open it in a main window and continue to use the companion window in a separate window.
Please restore it.
I am having the same issue in windows 11 what helped me is i open the app once and quit then toggle windows/System/Multitasking snap windows off and on. then open the app again. Since this is a electron based app (if i am correct) it doesn’t quite work with some windows settings.