You ommited another fairly known serverless Postgres provider which also does that (scale to 0 and no coldstart):
Nile (thenile.dev).
Not affiliated in any way with Nile, just a happy user.
I find their pricing much easier to reason about and plan, something I found super cluttered and hard to reason about on your pricing page.
Competition in the serverless Postgres space is always welcome from a customer perspective, but my gripe is currently a) bundling with Prisma - I might not want to use your tool and b) cluttered pricing.