Windows just changed my desktop wallpaper and re-added the search bar without my permission after an update
In my view, this is unacceptable...
They changed my background (previously there was a default blue window), placed an icon in the bottom corner of the screen that read "Learn more about this photo", and re-added the search bar that I had previously removed.
Fortunately, I don't have to deal with this on a daily basis.
Hmm, on one of the KDE plasma updates, my wallpaper did change to their infamous teletubby wallpaper. Mind you, I was still using the default wallpaper at that time, and this was their new default wallpaper, so that's probably why.