This is the most complete listing that I've been able to assemble from about 570 installations across my employer's network:
[General]
GeoLocale=system
SensitiveInfoMaskOn=true (false|true)
asBarTopMargin=30 (18~)
autoPlayGif=false (false|true)
autoScale=false (false|true)
bForceMaximizeWM=false (false|true)
blockUntrustedSSLCert=false (false|true)
captureHDCamera=true (false|true)
chatListPanelLastWidth=230 (100~)
conf.webserver=https://zoom.us
currentMeetingId=
deviceID=
enable.host.auto.grab=true (false|true)
enableAlphaBuffer=true (false|true)
enableCloudSwitch=false (false|true)
enableLog=true (false|true)
enableMiniWindow=true (false|true)
enableQmlCache=true (false|true)
enableScreenSaveGuard=false (false|true)
enableStartMeetingWithRoomSystem=false (false|true)
enableTestMode=false (false|true)
enableWaylandShare=false (false|true)
fake.version=
flashChatTime=0 (0~10)
forceEnableTrayIcon=true (false|true)
forceSSOURL=
host.auto.grab.interval=10 (5~60)
isTransCoding=false (false|true)
logLevel=info (info|warn|none)
newMeetingWithVideo=true (false|true)
playSoundForNewMessage=false (false|true)
scaleFactor=1 (0.25~4.00)
sso_domain=.zoom.us
sso_gov_domain=.zoomgov.com
system.audio.type=default (default|alsa)
upcoming_meeting_header_image=
useSystemTheme=false (false|true)
userEmailAddress=
[AS]
showframewindow=true (false|true)
[Proxy]
httpProxyHost=
httpProxyPort=
httpsProxyHost=
httpsProxyPort=
pacFilePath=http://wpad.my.company.com/wpad.dat
proxyType=pacfile
[CodeSnippet]
lastCodeType=0
wrapMode=0
[chat.recent]
recentlast.session=
[zoom_new_im]
is_landscape_mode=false
main_frame_pixel_pos_narrow="376,680"
main_frame_pixel_pos_wide="810,680"
I've never seen any documentation explaining valid values for most of these items, unfortunately, but have written known options in the brackets. There is no specific option for the auto volume feature to the best of my knowledge, but perhaps you can change system.audio.type
from default
to alsa
and control it with the standard audio settings.