Indication that uploading a part of a ZIP folder won't work

[ElSi-DVT]

In Windows File Explorer, a ZIP folder looks just like a normal folder, so it's obvious that you might be tempted to drag files from this view into the Nextcloud via drag&drop. But that doesn't work for known reasons.

In Firefox, there is no indication that the upload would work, but unfortunately it does in Chrome and Edge. This should be improved for users that are not so tech-savvy.

I have no idea if this can be intercepted somehow or if it has to be corrected directly in the browser.