If you're only paying $3-5 on Linode then your level of usage would probably be comfortably at $0 on Vercel.
Does Vercel do the same?
But that is news to me. Interesting. Although for static sites, I always use Netlify or even GitHub pages.
From what I can figure out, Vercel charges "$0.60 per million invocations" [1], which would cost me $180 per day.
[0] https://news.ycombinator.com/item?id=47611454 [1] https://vercel.com/docs/functions/usage-and-pricing#invocati...
I suspect I could do 3000+ rps with some tuning and a more modern CPU or hetzner VPS, but there's some fun cachet from running on an old Pi while there's still headroom.