Discord does not give users a choice to opt-out of their wildly invasive data collection methods including logging executables running on your system while the desktop client is open, not just games. This data alone is very valuable. Comment from a 2019 support thread "I am pretty flabbergasted that people aren't making a bigger deal of this than they are. Discord actively monitors your executables, but the larger co…
Why would you install the desktop app? Isn't it Electron anyways, so aren't you basically running the same thing as you would in the browser, except now you've replaced the exceptionally well sandboxed, trusted browser with an outdated, unsandboxed browser and have given an app that doesn't need this access to your entire system?
It scans executables running on my system and switches to "Streamer mode" when I start OBS.