I didn't know there was an update until I read your post. Unfortunately, no it did not fix this issue. 😟
I already tried to restore my phone via icloud last night and realized for some reason I lost all of my iMessages. So I then restored from iTunes backup again and i got all of what i needed, but the icons for the app launcher/switcher area remains oddly an issue. And it seems to only be for Apple default apps, like "Settings", "Mail, "Calendar",
OH and just to add a little more frustration, all of the "History" of open apps from when I backed it up and transitioned from my old iPhone 6+ remains a haunting reminder no matter if i close out the history and restart (hard restart or normal power off and on). Maybe there is a fundamental issue with some cache that is now forever in my image? I think i need someone from apple to help troubleshoot this bug...
My OCD may need to just settle down as I just don't want to have to restore as it didn't work and i'm not starting with a blank phone again.