I'm personally always confused with those batteries-included frameworks like Django, FastAPI and similar. Sure, they might be easier for a beginner to quickly whip up a simple Web site/app, but in my experience as your requirements grow they quickly start getting in your way.

Starting with more flexible initial components (e.g. Starlette) and adding batteries (SQLAlchemy, Jinja2, HTMX...) as needed allows for a sensible evolutionary approach and prevents painting yourself into a corner with early decisions.