When Grace is looking at the wall of paintings (34:30min), the third painting that comes up with a street and houses on both side is a Pils Street (Pils Iela) in Riga Old Town, Latvia.
The scene were Vanya in running towards the camera at 02:01 is the same location used in another Netflix drama Tiny Pretty Things (2020) were it is used for the Ballet school.
Elliot Page and Emily Piggford also worked together on Flatliners (2017)
Netflix went back to correct the credits of this episode from "Ellen Page" to "Elliot Page" retroactively in every episode as a sign of proper integrity and respect.