I'm surprised to not see Astro mentioned, its whole schtick is providing very similar DX to frameworks like SvelteKit except in a way that's geared towards generating plain HTML/CSS with zero JS by default. You get things like components with scoped styles but they are compiled down to nothing. It's really a breath of fresh air.
Yeah I really like Astro too, I often just start with the minimal template [1] that is just a couple of files. I used to do many experiments with custom SSG some time ago but since Astro came out I can't change back anymore.
If you don't want js on the frontend you can just use it as a nice html templating engine. It also renders markdown automatically for you as it recognizes different formats by the file extension.
[1]: https://github.com/withastro/astro/tree/main/examples/minima...
Once I randomly discovered Astro, I couldn't go back.
I love that you can even drop in Svelte and React blocks right next to each other, so you basically the power of all the advanced frameworks, and the choice to pare it down to a barebones html static site