Here is my folder name

❯ ls ~/.local/share/session
721ecdc0d62e219a32e81d4fc6da00f9e1f0066f.bitv  721ecdc0d62e219a32e81d4fc6da00f9e1f0066f.torrent  session.json

Rqbit uses the 'directories' library. As described in its documentation, under Linux, only the last application parameter is used as the directory name. However, in rqbit, 'session' and 'dht' are used as application .