I've never used it before, it seems interesting but not something I need. The heaviest application I use is Firefox and I simply have it run at boot and keep it open for as long as I'm using the phone.
I don't know the details of Preload, perhaps it's more nuanced, but this has been enough for me.
Code:
cp /usr/share/applications/firefox.desktop ~/.config/autostart/I don't know the details of Preload, perhaps it's more nuanced, but this has been enough for me.