When I go to lock the screen, as I do every time I leave the keyboard, the screen blanks and the system suspends/sleeps.
I have tried the following:
- Startup: "xset s off s noblank -dpms"
- Power Management: Everything to off
- Screensaver: Everything disabled
I've not tried the
xset -s 0 0
yet, not sure if I'll try that or not; Zorin OS 16 is my last attempt to enjoy Linux. I've been using it, on and off, since 1996; I was the President of my university's Linux User's Group (LUG) and got dozens of businesses to switch over to Linux, in some portion (server or desktop) since 2000. Now, GNOME has their issues, KDE has telemetry (sure, it's opt-in now, but will it always be that way?), and the other DEs leave a lot to be desired.
My favorite WM is openbox. I love a properly setup Void Linux with openbox; however, being that they're a rolling-release distro, it often breaks or has issues. For work, that's not a good thing.
I dislike XFCE for many reasons; no matter what settings I try, full screen will sometimes go under the panel, but... only if I move the panel to the top; if I leave it where it is, on the bottom in Zorin OS 16 Lite, or on the side, as in MX Linux, I don't have that issue.
I tried removing the panel and XFCE does not like it; so, going online, people suggest leaving it one pixel and hiding it and then using tint2 and plank. XFCE is the best the early 2000s had to offer in WM/DE development. In that regard, they're better than LXQT or LXDE or Mate or Cinnamon.
I've tried installing and running openbox in Zorin and that did not go so well. In fact, it lead to a reinstall. XFCE has many small problems, which have nothing to do with Zorin. Search for the screen blanking issues and you can see it goes waaaay back in history.
I miss the days of a solid, easy blackbox WM; that turned into fluxbox, which I don't care for as much, and then, of course, openbox.
But, as for XFCE. Although I'm running it now, I'm actively looking at other distros. I love the Zorin OS experience (which is extremely odd, because there are so many problems with the individual pieces: systemd -- I ran into journald corruption many times over the years; GNOME is the closest to Windows the Linux world has and it's directly tied to the U.S. DoD, CIA, FBI et al.; and Ubuntu -- I used to push Ubuntu hard, as a replacement for Windows/Mac, until their telemetry fiasco).
tl;dr -- I don't much care for XFCEs workflow, its many small issues and the rather large one above. I would use it if I could get it to stop shutting off my monitor or system.