Have they finally allowed you to set the alert sound in IOS? My problem with mobile discord is the feeble little ding they deem you are allowed to hear is so quiet even with the phone turned up I don't hear alerts. There are several complaints in their bugtracker about this going back 7+ years, they seem to want people to miss alerts for some marketing/profit reason.

On other platforms you can overwrite the sound file in the package with a proper alert, but not with the "we're apple, fu and enjoy it" IOS stuff.