Anne-Marie Duff who plays Maeve's mother, is known to play Fiona Gallagher in Shameless, where she plays a working class young adult with an absentee mother.
The song Jakob (Mikael Persbrant) is singing in the shower is "Sommartider by the swedish band Gyllene Tider.
In the first season, Otis repeatedly pronounced Ola's name as "Oh-la", he no longer does this in season 2, which implies Ola taught him at some point between seasons given the hinderance him saying her name incorrectly would be on their relationship.
Ironically, a real airborne pandemic (Covid-19) would occur soon after S2 aired, making mask-wearing a regular practice.