• Debian buster + deb-multimedia
• Jami Version : 20200430.1.b9c48ee~dfsg1-1

1. Goto : Settings > General
2. change the "Download Path" string
3. exit Jami completely
4. less ~/.config/jami/dring.yml
5. observe that this path wasn't updated at all.

In fact, it is only set once, at first launch but I don't remember if it was an auto-setting to the directory where it was launched from or if I set it at this occasion.