Notion doesn't even need to offer these guarantees in their SaaS service. They can just ship to my Kubernetes cluster, and let me manage the ingress and storage

Notion doesn't even need to offer these guarantees in their SaaS service. They can just ship to my Kubernetes cluster, and let me manage the ingress and storage, and that would be enough to make it mission critical software. In the meantime, we end up using tools with a little bit less good UX, but we just can't share that data publicly. UX can't win over security, and I hate having to choose.