It seems like "Activate" is not even implemented, only "SecondaryActivate". https://git.launchpad.net/ubuntu/+source/libappindicator/tree/src/app-indicator.c#n1198
KDE had to work around this by just falling back to opening the context menu: https://github.com/KDE/plasma-workspace/blob/e0609d88d029ec0700768fa8ec1db3e32b628495/applets/systemtray/package/contents/ui/items/StatusNotifierItem.qml#L54
It seems like "Activate" is not even implemented, only "SecondaryActiv ate". https:/ /git.launchpad. net/ubuntu/ +source/ libappindicator /tree/src/ app-indicator. c#n1198
KDE had to work around this by just falling back to opening the context menu: /github. com/KDE/ plasma- workspace/ blob/e0609d88d0 29ec0700768fa8e c1db3e32b628495 /applets/ systemtray/ package/ contents/ ui/items/ StatusNotifierI tem.qml# L54
https:/