Right clicking on sys-tray icons to summon up the menu also causes the first item in the list to be launched instantly 90% of time.
Simple right click on panel's system tray app icons, like Bluetooth or Steam or Discord or Flameshot or whatever causes the first item on top of the menu to be launched instantly on the menu open click. REALLY annoying on some cases, like Steam, when quite often there is some rather big game or whatever and right clicking there just launches a effing game that takes like 5 minutes to load...
only WORKAROUND so far I have found is right-click AND HOLD and move the mouse away from the menu to not launch anything. Really unintuitive and bad design imho.