I know it's a weird question, but I was recently watching Pornographer (2018) and I think they were both filmed in the same town/city.

From what i've read, UK was mostly filmed in Uenohara and Tokyo.

The shrine is Ushikurajinja, the river Katsuragawa, in Uenohara. The family house, university, café-théâtre (season 1) and the shops they visit during their "date" (season 2) are in Tokyo.

Pornographer however was filmed in Hino (someone did an amazing job here).

They're not that far (in distance, but also from an architecture and history's point of view) from each other, but it's not the same cities. :)