Genuine question: How is that a value proposition when Cloudflare offers a CDN for free with unlimited bandwidth, that you could just put in front of the sweaty VM in Helsinki?

Not trying to be obtuse, I really don't get how other providers can compete with that, I can't imagine Vercel's CDN is so significantly superior to make it worth it.

Yes, and I didn't mean to imply that a single VPS is all you needed. But I wanted to put things into perspective for the other posters who claimed that you couldn't possibly serve a site like this from a single machine, purely in terms of performance.