During the presentation of iOS 12, an interesting possibility of overlaying various visual special effects was demonstrated right during the shooting of Selfie.
But after installing a new version of the operating system and turning on the front camera, there are no additional “buns”. Where to find such a mode?
At the moment, various filters and visual effects (including advertised Memoji) at the time of shooting are available in the Dialogue mode.
Probably, Apple is so unobtrusively trying to “force” to communicate its users through branded iMessage.