VPS is tailored for users who like/want/need control. If you care about control, Astro isn't a good fit. E.g. you won't be able to use Astro with React Server Components. And many other subtleties that, in the end, sum up to a fundamentally different tool.
1) Astro is either all-SSG or all-SSR, while VPS is mix-and-match
2) Astro uses `.astro` templates by default, while VPS uses `.js` by default
3) Astro comes out-of-the-box with Typescript, Sass, etc., while VPS requires more configuration (by design)
Other than that, they seem to have fairly similar project structures and use-cases... Or am I misunderstanding?