Hey there,
Unfortunately, very few users play on Linux. It may take a while before you get an answer. You could try searching online for one in the meantime.
Toolguy, who works on the Conan Exiles Dedicated Server Launcher (Official Version: 1.7.2 / Beta: ----), has mentioned in the past that Linux users have issues with this as well, so you’re not the only one.
See also: Cancelled features for information on Linux support.