Getting rid of xscreensaver on Lubuntu

Upon logging in on Lubuntu 19.04 it is using sddm, but when the computer is idle too long and it goes into idle, when I go to log back in it is using xscreensaver(which I can’t stand the look of). I installed gdm3 in an attempt to change both over to a single interface, but all it did is replace sddm leaving xscreensaver as my login after idle. How can I replace xscreensaver in Lubuntu?