Thank you for that hint. I came to the same conclusion after some more digging.
I found this tutorial: adguard-home-on-public-server.
But it mentions I need a wildcard ssl certificate. As I understand it now it is not a feature of cyberpanel (yet), how-to-set-up-wildcard-ssl-on-cyberpanel-openlitespeed.
I will do some more testing and digging before I give up on CyberPanel. I did purchase the server just for AGH, but was also looking for a new panel and do some testing. I hoped to hit two flies at once. (If that is a good English expression)
I’m definitely impressed with CyberPanel and it will be my first choice on new, or when reinstalling, servers.
I might come back asking questions about cert/ssl paths, but first I will try to find it in the forums.