A lot of these are just standard things that things like crash reporters pull. In other words, Discord probably included a crash reporter in their app, and it pulls things like memory usage, device state, os version, what orientation the device is in, etc so that when a crash happen, it can tag those to the developers. Those are all useful variables to the developers to understand what is causing the crash.
Tons of apps use crash reporters to keep their app stable. I’m sure most apps will pull the vast majority of this information. That doesn’t mean that they’re using it to track you.
This is one hundred percent sensationalism. Just because the app pulls it doesn’t mean that it’s being used to track you down. It’s probably just for crash reporting etc.