Logging in briefly shows image of previous session (with compositing on)
When compositor is enabled, logging out and then back in (and even restarting the computer) will briefly show an image of the previous session. This includes windows open and text/images from the previous session which could be a potential security/privacy issue.
This does not happen for me when compositing is disabled.
Others seem to have experienced this as well in this reddit thread. I'm using xfwm4 4.16.1.