Linux has some problems with sound effects not playing and/or being at wonky volumes. Go figure. It uses OpenAL by default (I have not been able to get FreeAudio to work) but apparently needs the 32-bit drivers. On 64-bit Ubuntu, you should be able to get them with:
sudo apt-get install libopenal1:i386 libopenal-dev:i386
Other linux distros need to modify that command accordingly (https://www.codeweavers.com/support/wiki/diag/missinglibopenal has a good reference sheet). You may need to reboot following the install.)
We will keep this page updated with any Linux fixes that any people need to employ to keep the game running in the wild sea of distros.