To download all objects using wget:

wget -r -H -N --cut-dirs=4 --include-directories="/v1/" "https://swiftbrowser.dkrz.de/public/dkrz_8656c91ce0734327b6dc867fc5b6b068/ESiWACE2-Public/Paraview%20Sample%20Data/?show_all"

Name
PalMod_example
ESiWACE_HPDA_2021.pdf
calculator.txt
clivi_cllvi_newtime.nc
clouds.json
height.nc
icon_atmo.nc
icon_ocean.nc
land.json
oce_3d_r2b4.nc
oce_3d_r2b5.nc
oce_3d_r2b6.nc
uv.nc
world.topo.200402.3x1920.png