TeamSpeak ignores localized directories on Linux, and creates separate “Downloads“ directory.
Most Linux desktop environments support XDG Base Directory Specification with xdg-user-dirs. So mostly Linux programs use value from XDG_DOWNLOAD_DIR environment variable, or read values from “$(XDG_CONFIG_HOME)/user-dirs.dirs”, if it doesn’t exists, then “/etc/xdg/user-dirs.conf”. This values already has localized paths to standard directories.
You can select a your desired download folder in the Settings → File Transfer → Choose download location
I have turned off “always choose a path manually”, now i see the default path (/home/user/localized_name_of_downloads/team-speak-downloads), and its correct, but the problem is still exists. When i launch TS client, i see that it creates non-localized “Downloads” directory in my home directory (/home/user/Downloads).
TID: 1772
Thanks for your report, i created a ticket for that behaviour.
Should be fixed in the next client update. A retest and feedback would be nice 
Fixed with update 6.0.0-beta3.3.
