Well, there are a couple of ways to. Firstly, on this primary landing page, under the Xbox section, there are three direct links - one of which is Xbox servers and clans and the other Xbox bug reports. This may be a good starting point?
Also, a quick Search (top right magnifying glass icon) for “zendesk” shows results, including the link: https://funcom.zendesk.com/
Under the heading “Promoted articles”, click on “How to report a bug”, This lists all he ways too report a bug for each platform.
The xbox link is: https://forums.funcom.com/t/new-bug-report-template-xbox/
The other links under the " Promoted articles" cover many other guides useful to players of Conan Exiles, and that save a lot of time. It would be interesting to know how many players have read these guides.