To download all objects using wget:

wget -r -H -N --cut-dirs=8 --include-directories="/v1/" "https://swiftbrowser.dkrz.de/public/dkrz_b42c6bc6-439f-4efb-9491-db3de70ad9ba/botany_1536_2D/botany_1536_2D.zarr/cinmax/48/9/4?show_all"