So I was trying to find a similar application to the “Startup Applications” in Ubuntu and found “LXQt Session Settings” (Preferences → LXQt Settings → Session Settings).
Under Autostart screen, I selected ‘brightness-controller’ which is the application I want to autostart on login, but without success. Take a look at the screenshot below:
The entire command is /usr/bin/brightness-controller.
Why is it not working?