I haven't seen anyone talk about this aspect of the Pekomama debut so I wanna put my thoughts out and say that, during her "debut" I kinda expected Pekora to reappear and eat up the prescence of the stream and just yank her mother around just like the previous cases of Pekomama's appearances.
But I'm not sure whether it's thanks to Mami having possession to the mic this time or her being mentally prepared, but she actually stood her ground against Pekora. And thanks to that, it actually made their chemistry immaculate as hell. Like fuck, put her in snack usada, whenever the fuck that would be.