I develop static websites using modern tech stack (a headless CMS for the backend and a static site generator for the frontend) which creates performant and secure websites.
One bottleneck for this solution is the need to include dynamic forms (contact us, register to newsletter etc), which is the only part of the website that needs a backend.
Using headless forms is the easiest way to avoid having a dedicated backend for managing user feedback, and having full flexibility to design the forms in the way you want.