Discord seems to be going the way of Skype: deprecating their support for Windows 7, in favor of a newer OS offering from Microsoft which harvests data in the background under the feeble guise of telemetry. Granted there is telelmetry in Windows 7, but you can disable it in Windows 7 and not worry obout it being over-ridden the next day, or even the same day, with some forced update.
Discord still works fine on Windows 7. Is that about to change? I'm actually surprised that it still works since it's just a Chrome-app. The Guilded desktop client dropped support for Windows 7 like 2 years ago.
Are you worried there is some sort of anti-Windows 7 conspiracy, where software vendors stop supporting a 15 year old years out of support OS so that an unrelated software vendor receives more data?
Or is it simply more likely that nobody wants to test their software on a 15 year old OS? When XP came out that would have been Windows 95, and the same thing happened.