Beyond the defaults, there were 7 different wallpapers available in 10.15 (Catalina): https://9to5mac.com/2019/09/29/macos-catalina-wallpapers/ https://9to5mac.

Beyond the defaults, there were 7 different wallpapers available in 10.15 (Catalina): https://9to5mac.com/2019/09/29/macos-catalina-wallpapers/ https://9to5mac.com/2019/09/29/macos-catalina-wallpapers/