I have a Regolith Linux (an i3-based desktop) installed alongside KDE (Kubuntu). In KDE I have screen locking disabled, while still having the display turn off after a set period of inactivity. However when I am using Regolith and the screen turns off, when it wakes up I have a KDE-branded unlock screen. This does not happen when using KDE.

How can I can I prevent the KDE lock screen from locking non-KDE sessions?