What kind of data does Discord app collect on Linux compared to the browser version on hardened Firefox?

About 2 months ago, I have deleted Discord app and started using it on hardened Firefox to improve my privacy, but the performance, especially on streaming was trash compared to the app, so I started wanting to go back to the app version, but I'm aware of data collection, so I wonder what data does Discord collect on their app compared to the browser version since they encourage people to move to the app version,

app browser data discord firefox linux privacy version