I tried to get to Rohendel via the guide quest but couldn’t progress at all. The Guide Quest needs to guide you to Vern to accept another Guide quest; one that I never knew even existed. Please update so that it is clear on how players are supposed to progress to Rohendel.
The quest information clearly says “After talking to Ealyn set sail to Rohendel” or something along those lines. It’s not 100% straight to the point like most quests, but it’s very clear that you need to talk to her before you go out to sea again.
Regardless, without doing it you can’t even sail west. The game literally doesn’t let you.
With those two pieces of information you have more than enough information to at least go check if Ealyn has anything for you… I don’t think there’s anything missing imo