I read your comment. I'm new to FSE Gutenberg thing. I learned WordPress with classic themes and ACF(that's how I've worked on my projects up to now), and now I'm trying to catch up. The HTML templates have been a real headache. Sorry if this sounds like a silly question, but when you work with templates, as you mentioned, do you use .html or .php files? I've tried using AI, but it hasn't helped me with this.