It does not work. Enabling developer mode is not possible from the
mobile app. Enable developer dialog from the headset has no effect.
Please reopen this issue and actually fix it. We very much would like to
add VR experiences and content to your net...
This might be interesting: after getting in touch with the Meta whatsapp
helpdesk about this, they suggested that the problem was on the
developer server, so I filed an issue here:
https://oculusdevelopers.zendesk.com/