If you want evidence, I obviously can't provide anything concrete. With how ai technology is these days, there's no sure-fire way to prove anything you or anyone else writes is ai. However, your writing comes across that way. A lot.
Exhibit A: the Synopsis. As
@Macha mentioned, it's indeed clanky sounding.
This isn’t a story about vigilantism. This isn’t a story about a disillusioned war veteran finding his way. This isn’t a story about an urban jungle at the start of a new decade. This is a story about violence. How it’s in our nature. Institutions you were told to trust failing people, and their violent reactions to realizing that help was never meant to come. This is a story about Ultraviolence.
Why?: There are no names, specific locations, or any kind of unique plot hook. The synopsis seems to rely entirely on mood and thematics. Why does that mean it seems like ai? Because if you were to ask an LLM to help you write a synopsis with basic level context, that's something similar to what it would generate, it's a common trait when it doesn't have a text bible to work with. However, this can also point to someone just leaning REAL HARD into overdone or nitty gritty edgy tropes, or simply attributed to inexperienced writing.
Also, you might want to tone down your overuse of deflection and contemptuous sarcasm.
Good luck with your writing~