I mean how many girls do you know that are named Kris? The only possible feminine interpretation I can even come up with would be that it's short for something like Kristine, which there's zero evidence of. As far as we know Kris's name is literally "Kris Dreemur", and in that context Kris as a standalone name is just flat out a boys name. It's just an alternate spelling of Chris, which is definitively also a boy name.
Most people who aren't indoctrinated by the troon mindvirus just hear Kris's name and look at the sprite and instantly clock him as a dude, and that's before his personality just reinforces that idea.
Ffs even by "weird kid" standards Kris comes off like a guy. How many loner chicks bring weapons to school and eat moss? There's a reason a lot of the stereotypical "loner kid" behaviors Kris exhibits are nigh-universally associated with boys. I knew people that were a lot like Kris, and none of them were girls.
Even the absolute biggest koolaide drinkers on the Nonbinary shit still have to tacitly admit that Kris is, at best, a masc enby. Even if he is nonbinary, he's still essentially just a teenage boy who still looks, acts, and speaks like a teenage boy but just goes by they/them pronouns because he's a moody hormonal teenager that's who he feeeeeels like he is. It's like pooners who literally just say "I'm a boy now :3" and change literally nothing else about themselves. It's noncommittal at best.
The only genuine androgyny or femininity that I've seen come from Kris is fan content. In-game he's just blatantly a teenage boy.