That's right it's like having a sticky A4 sheet of paper slap onto your windscreen as you're driving along the freeway/autobahn/motorway.
There it is stuck on that upper left corner flapping a bit, making some noise, blocking a bit of the view.
Next available time slot to remove paper from windscreen is a week+
Meanwhile it carries on flapping, blocking the view.
No effect on the whole experience I'm sure.
You compared a chat window not fading away in a video game to having your windshield partially obstructed while driving 60+mph on the highway...