For the fun of it checked CIFS mounting, it’s working with shell command number 2.
shell_command:
#mount NFS share
mount_nas_media_folder: mkdir -p /mnt/media;mount -t nfs4 192.168.8.18:/public_m3 /mnt/media
#mount CIFS/Samba share
mount_nas_media_folder2: mkdir -p /mnt/media2;mount -t cifs -o username=anonymous,domain=WORKGROUP //192.168.8.18/public_m3 /mnt/media2