My account has the new iOS app UI, I contacted discord support on the issue, and “unfortunately do not have a way to switch users back”.
I want to suggest adding the feature to set the online status on the bottom bar like the old interface can, as an iOS user it was a bit confusing on how to set the online status on the user interface.
On iOS to set the status on the new UI touch the gear icon on the bottom, app settings status.
However, I prefer the old method and way less clustered the new way.
In which, I just touch my icon it shows up the set status.