Marilyn introduced herself to Sonia and got her phone upgraded with a Rotom, just like Marlon's already had. When she heard that Marlon had been invited by Oleana and Rose, Marilyn wondered why they wanted Marlon in Galar. Last thing she heard the Chairman was sponsoring someone named Bede already. 

As they followed Sonia to Professor Magnolia's lab, she noticed how Glaceon seemed to enjoy the company of Lucario and Magnezone.
"Quite the teamwork they did there with that Wooloo." she stated.

When Marlon was talking to Sonia, Marilyn fell a bit behind with Cedric and whispered to him:
"Did you hear that earlier? Marlon is going to send his Magnezone back to Kanto. That is just crazy. I bet it was his starter, back in  its Magnemite days. Can you imagine saying goodbye to your starter after all those years?"

She wondered if Magnolia would give Cedric a new pokemon or not. What would he do if she doesn't?