I'm helping someone switch to Linux, and he's trying F30.
So I decided to put F30 (with KDE/Plasma) into a VM on my older (F26) system.

My first 2 stumbling blocks are:

1/ Somehow (and I don't know how I did it), I seem to have created
   a 'notes' window.  Now I can't figure out how to get rid of it.

2/ I thought I'd configure the screen timeout to just blank the screen
   and not lock it.  I figure its under Settings -> System Settings ->
   Power Management.  But when I select it, I get the message:

      Power Management configuration module could not be loaded.
      The Power Management Service appears not to be running.
      This can be solved by starting or scheduling it inside "Startup and Shutdown'.

   a) Switching to 'startup and shutdown' leaves that error info on the screen
      and I have to stop/start the settings GUI to clear it.
   b) There isn't anything in 'startup and shutdown' related to 'power management services'.

I tried Googling, but I haven't discovered any solutions for either problem yet.