Whenever I open a window, the focused window is getting a distracting border. I am not getting the reason behind it. I also checked by changing the application theme, restarting the system, and updating but nothing seems to solve the issue. I am attaching screenshots. When I go to full-screen mode hiding the panel, the border is still as if the panel is present but the window is going to full-screen mode, hence a pretty distracting experience is going on.
Do help me with this problem.