The recently released Ubuntu 24.10 ships with Gnome 47, but doesn't include the default Gnome wallpapers by default. You can manually install these wallpapers by installing gnome-backgrounds using sudo apt install gnome-backgrounds. However you will notice that many wallpapers will only render one solid color and not the actual background image. This is because many wallpapers in the gnome-background package are now in .jxl (JPEG-XL) format, and unfortunately Ubuntu doesn't have support for this file format enabled by default.
Luckily, there's an easy fix. Starting with Ubuntu 24.10 you can enable JPEG-XL support by installing the libjxl-gdk-pixbuf package so that you can enjoy the default Gnome wallpapers in Ubuntu 24.10.
- Install the Gnome backgrounds:
sudo apt install gnome-backgrounds - Install JPEG-XL support:
sudo apt install libjxl-gdk-pixbuf - Log out and log back in again and go to Settings > Appearance. You can now see the default Gnome wallpapers available here.
That's it!