Vercel just does not get it, it tries to sell SSR-first(and that's what Vercel cares commercially, understood that) to CSR-works-too every time it gets a chance

Vercel just does not get it, it tries to sell SSR-first(and that's what Vercel cares commercially, understood that) to CSR-works-too every time it gets a chance. It's not about document at all, if anything the document should never fake SSR-first to something like: set this flag then you get a CSR too, it does not work that way. It's about the burden of mixing SSR and CSR, Vercel's next.js and sveltekit are both SSR-first by design no matter how you sugarcoat it. I may use them when I need SSR one day, but please stop overselling it as CSR-ready. Talking about documentation, please do not forget Vuejs, it has the best document all in one place in the JS ecosystem, by the way, it is a true CSR SPA and its SSR(nuxt) is truly an opt-in.