Xscreensaver Debian 11 not functioning properly on LXQt

Hi I am running Debian 11 Bullseye, LXQt version, and I'm having trouble with the screensaver called XScreensaver version 5.45. * Basically what I would like to do is for the screen to completely shut off when I'm not using the computer for 10 minutes and for there to be a screen lock so when I or anyone else tries to go into the computer they need to type in my computer password. * However currently when I'm using this screensaver it's going to a blank screen which is a black screen but it is still giving some brightness so if I'm sleeping I will see this brightness. I want my screen to completely turned off, but to have the computer and some apps like FTP program gftp, transmission QT BitTorrent, or Firefox browser and of course the internet to be running. * Also, when I'm watching a movie/video or playing music, the xscreensaver activates and I have to put in my password every 10 minutes or so. Even if I change the settings temporarily and I put 720 minutes or something or even completely disable the screensaver, it still activates and I have to put in my password. I don't want the xscreensaver to activate at all when any audio or video application window is maximized. Only when the windows are minimized. I use VLC media player, Audacious, DeadBeef, and other audio and video players as well. I'm a newbie at this operating system, so how would I do this? Thank you so much