Does Outline support end-to-end encryption or client-side encryption?

[p44]

Hi, I’m evaluating Outline but need clarity on data encryption. Is there any built-in E2EE or client-side encryption for documents?

Here, on official Guide, I reed that "When use Outline, the transmission of information between your device and our servers is protected using 256-bit TLS Elliptical Curve encryption. At rest, Outline encrypts all data using AES-256."

Is not clear to me if this also work for self-hosted version.

Thanks for any insights.