xfce on xubuntu blank screen with just cursor

Bit of a rant but worth saving maybe. So this has happened a few times now – when I return to xfce4 on my Xubuntu 20.04 laptop after its blanked the screen – all I get back is a blank screen and a cursor. Nothing else!

Tried Ctl+alt+F2 and back to F7 but same thing.

My fix: ps aux |grep xfce, kill -9 <pid of xfce-screensaver> and ta-da, screen back. Utterly bonkers!