Just to make things clear. There is in universe gnome-raw-thumbnailer that do the job. Having it installed by default would help. BUT there is also a bug in the thumbnailing code in gnome that make this fail with some files like Canon CR2. That needs to be addressed upstream.
Just to make things clear. There is in universe gnome-raw- thumbnailer that do the job. Having it installed by default would help. BUT there is also a bug in the thumbnailing code in gnome that make this fail with some files like Canon CR2. That needs to be addressed upstream.
I'm not especially working on it.