Both of these productions have a man-vs-self plot conflict as the main character is forced to analyze where they fit into their everyday life and relationships. There's also a prominent focus on intimacy in Between Complete and Incomplete that is seen in a few episodes of One Night Morning. The main character of Between Complete and Incomplete also reminds of the ML in episodes 2 and 7 of One Night Morning.
Between Complete and Incomplete (2021)
Similars
While very different in premise and representation, both of these romance films focus on characters who aren't frequently discussed in media. Both of whom come to explore the world through their camera lens.
Both of these LGBTQ+ explore non-monogamous relationships, queer relationships, queer identities, and issues related to intimacy within romantic relationships.