Deltarune features Queer representation, but Queerness isn't its central theme.
*This isn't a criticism of the game*
To clarify what I mean by the title: in my personal online experience, I often see people talking about Deltarune as an inclusive game (which is true) where queerness is central to the plot and themes...
I don't agree with that.
It's true that Toby Fox is very open and fills the cast with various spectrums of the LGBTQ+ community, but these characters never discuss their sexuality or gender identity. There are no conversations about the difficulties, or lack thereof, of being Queer.
It seems to me that Deltarune's main themes, perceived identity, free will, and a dash of postmodern meta-narrative, are framed in a way that could resonate with anyone, even my 99-year-old grandfather who fought in World War II. And don't get me wrong: obviously, the themes of Deltarune can be deeply felt by the Queer community, but I don't feel like they are the primary target audience.
The game definitely targets the Queer community in terms of its demographic/fanbase, but I don't think its philosophy and narrative are specifically "queer" in nature.
Perhaps it's because I'm used to Queer literature being a body of work that actually problematizes the issue, rather than just including 10 LGBTQ+ characters and then speaking broadly about general philosophical themes (which, to be fair, are quite interesting in their own right).