To download all objects using wget:

wget -r -H -N --cut-dirs=6 --include-directories="/v1/" "https://swiftbrowser.dkrz.de/public/dkrz_70a517a8-039d-4a1b-a30d-841923f8bc7a/RCEMIP/ICON_AES/RCE_large295/0D/?show_all"

Name
ICON-CRM_RCE_large295_clivi_avg.nc
ICON-CRM_RCE_large295_clwvi_avg.nc
ICON-CRM_RCE_large295_hfls_avg.nc
ICON-CRM_RCE_large295_hfss_avg.nc
ICON-CRM_RCE_large295_pr_avg.nc
ICON-CRM_RCE_large295_prw_avg.nc
ICON-CRM_RCE_large295_rlds_avg.nc
ICON-CRM_RCE_large295_rldscs_avg.nc
ICON-CRM_RCE_large295_rlus_avg.nc
ICON-CRM_RCE_large295_rlut_avg.nc
ICON-CRM_RCE_large295_rlutcs_avg.nc
ICON-CRM_RCE_large295_rsds_avg.nc
ICON-CRM_RCE_large295_rsdscs_avg.nc
ICON-CRM_RCE_large295_rsdt_avg.nc
ICON-CRM_RCE_large295_rsus_avg.nc
ICON-CRM_RCE_large295_rsuscs_avg.nc
ICON-CRM_RCE_large295_rsut_avg.nc
ICON-CRM_RCE_large295_rsutcs_avg.nc