Thats correct. With latest firefox releases I could upload multiple folders and files at once simply by drag and drop.
I guess we are not far from my intial request. My intent was to easily share a place where people can upload photos. We can do this already today by sharing a folder hiding other files and allowing upload. But still a little step is missing. The link needs to be shared easily.
Do you guys have an idea how this could be done better than sending the link via communication apps?