It’s amusing to encounter all the random easter eggs on Only Side By Side With You 南方有乔木. There was another fun one in episode 30 that features Yang Mi from her drama Legend of Fuyao. Both are produced by Linmon Pictures, which explains the move to self-promote.
In the scene, one of the characters is chilling in the office with a face mask on while trying to watch the trailer for Legend of Fuyao. The whole thing lasts a good minute and a half until the lady is interrupted by a hunky Li Xian who flashes a huge grin at catching her in the act.