Melissa Povenmire, who provides the voice of Gretel, is the daughter of show creator, Dan Povenmire.
First A Lei de Milo Murphy (2016)/Phineas e Ferb (2007) spinoff to not set in Danville, although it still took place in Tri-State Area.
First A Lei de Milo Murphy (2016)/Phineas e Ferb (2007) spinoff to not involve Jeff 'Swampy' Marsh as a co-creator and producer, although he still appears in this show.
Third series part of the Tri-State Area universe, aka Danville-verse. A Lei de Milo Murphy (2016), Phineas e Ferb (2007), and this series shares the same universe, although this series didn't take place in Danville but still set in a Tri-State Area.
First, and so far only, Phineas & Ferb/Milo Murphy's Law spinoff series to not have a crossover episode, and also the first to not feature any Milo Murphy's Law and P&F characters, although some of the voice cast from both of those shows still appears in this series albeit in different roles.