qBittorrent official forums

"Allow to add root folder to torrent content"

Trying to figure out what this means. The best understanding I can come up with is that if the contents of a torrent aren't already part of a folder (ie, all are in the top level), then this allows the adding of a folder so everything falls within that folder.

Is this correct, or does this offer a different feature?

Just update to 4.3.2
But I can not find this option.
Is it automatic applied? or have a toggle option?

I think I figured it out.

When you are manually adding a torrent, there is a "Content Layout" option to use the torrent as-is, create a subfolder, or to not create a folder at all.

thank you Wolfie.

From my testing, it is same as you said, if the torrent files have no parent folder, it will create a folder for it.

In addition, the "don't create subfolder" option, will remove the parent folder(if exist) of the torrent files.