When you reinstall the app, the call record will still be on the app if you used the same account. Discord keeps all calls, texts, and servers you joined regardless of the device you used it on, even if it was on your laptop instead of your phone. This will only work if you use the same account, because your account will still keep it saved.
twining, and wicker. I only listed two because you only asked for two but there are actually four. If you want/need to know the other two, let me know.