This is so annoying. It even happens when I have my screen at about 3/4 of a full screen so I can drag and drop screenshots into files in our office software and it keeps snapping back to full screen. If I have 2 screens open and split it keeps making both of them full screen. I've been doing this for years so I know it isn't anything I am pressing by mistake. It is slowing down my ability to do my job. This needs to be fixed.