I’m on Debian with XFCE I’ve already tried modifying /etc/default/grub and /etc/lightdm/lightdm-gtk-greeter.conf The first resulted in nothing (I actually have grub timeout set to 0, so I’m not sure if I only need changing grub’s config), the bootsplash was still default The second resulted in black login bg


if your grub timeout is set to zero, you’re almost never going to see the bootloader screen.
Prolly, but I do see some wallpaper while my computer is booting, and it’s not my home screen wallpaper
That’s plymouth, not grub
there’s likely at least 3: one for the bootloader; one for the display manager; and one for your screen wallpaper.
it’s the same w windows