Connect Kontact / KDPIM / Akonadi to Open-Xchange

Hello community,

I have been using a local Open-Xchange server (7.10.6) for quite some time now. On my desktop (Debian 12.5 / Plasma), I have been accessing OX through the web browser. I have connected my mobile devices (Google Pixel / GrapheneOS) using DavX5 via CalDAV/CardDAV, and that all works fine.

On my Plasma desktop (Akonadi), I have two options:

- DAV Resource
- Open-Xchange

Can someone please explain the technical differences between these two agents?

Best regards