Not sure if VPN would help you much against telemetry in a mobile app. A native foothold in your phone's system gives them access to much better data than they could infer on the server side.
E.g. if I wanted to know where you're hailing from, I'd browbeat you into granting me Location access privileges. If that's too difficult, I'd get you to grant me Files/Photos privileges (this one won't raise too many alarm bells with apps like Discord or Reddit), and then try to read EXIF geotags off your recent photos.
E.g. if I wanted to know where you're hailing from, I'd browbeat you into granting me Location access privileges. If that's too difficult, I'd get you to grant me Files/Photos privileges (this one won't raise too many alarm bells with apps like Discord or Reddit), and then try to read EXIF geotags off your recent photos.