That 3d file manager was called 'fsn'. Then there is a gtk/Linux port called 'fsv'. I maintain a version updated to gtk+3 at https://github.com/jabl/fsv https:/

That 3d file manager was called 'fsn'. Then there is a gtk/Linux port called 'fsv'. I maintain a version updated to gtk+3 at https://github.com/jabl/fsv https://github.com/jabl/fsv . Unfortunately life has gotten in the way and I haven't had the time to port to gtk4 nor add some missing features.