I have problems with gpu drivers. Some builds have Panfrost drivers, and some har software rendering. Often, Ubuntu has Panfrost, but Bookworm has Software.
Prebuilt images often have Panfrost, but if I build the same image myself, there is no gpu driver. Learning about overlays, and looks like I have to enable gpu drivers there.
I want to use Debian and not Ubuntu, but Ubuntu seens to have better hardware support (audio/video drivers). Not sure if that is just something I "think"