hi I have followed the steps to download 23.6 crossplatform DLL’s using below steps
download this zip package: https://releases.aspose.com/slides/Net/new-releases/aspose.slides-for-.Net-23.6dlls-only/ 1
extract Aspose.…...NET 23.6 Does Not Work with Linux Alpine Aspose...Family slides-linux , slides-net , slides-config , slides-crossplatform...