It is. I’ve kinda been meaning to get into it as a low-effort artistic hobby. However you’re more likely to find matching puzzles made the same year by the same company than if you try to use puzzles from different years or different manufacturers (yes, some manufacturers share stencils).
My understanding is that’s usually how it works. It’s just that most people usually settle for like, transformation art or VRChat and don’t need to make an entire blockbuster movie trilogy to come to terms with being trans lmao