Fuck I am terrible with these questions.
I'd say I write adventure stories that are Science Fantasy? But inside this science fantasy/adventure framework I have everything under the sun like romance, drama, comedy, and commonly find myself adding a lot of horror elements.
Lately I've been into cyberpunk and that weird genre of sci-fi that presents itself as fantasy but all the "magic" is just sufficiently-advanced technology.
Exactly this. When I first started my early stories were straight fantasy and I found this limiting. Sci-fi and Fantasy are two sides of the same coin so it wasn't that hard for me to take all of the tropes I enjoy from fantasy and translate that over to a soft sci-fi setting. Just less stupid character and location names, guns instead of swords, aircraft instead of horses and spaceships instead of wooden ships.
I've got a story of my own in the works; main issue is, I know what I want to write, but no idea on that actual main plotline as of yet. It was meant to be something of a science fantasy/urban fantasy setting, focusing on fighting mutants and monsters in a modern world akin to the World of Darkness and similar, but I have no real idea on how to set everything up? I've got some ideas that I want to run, if anyone is willing to give advice.
Honest to God, just start writing. There's a good chance you'll write yourself into it. I had 3 ideas I wanted to explore and 1 dialogue sentence in my head when I started my main series and man, that first book was completely different to what I thought it was going to be. It took me to so many different and surprising places as I progressed. When I got to about 75% done, couldn't figure out the ending so I went back and edited it, adding in new scenes and chapters and really filling out the world. That 75% turned out to be closer to 50% when I was able to continue by building on what came earlier and understanding the world, characters and what story I was trying to tell by that point.
I'm not a pure pantser, I'll have plot points I want to reach, and I'll open up Google Keep and write out single sentences of what's coming up in the next chapter so I know how to direct the story.
I personally cannot stand sitting down to world build. When I was a kid I used to be able to make maps and stuff, but now, it's straight plot for the first draft. A>B>C>D, and then I'll go back and figure it out and give it that depth. That's how I like to work, anyway.