With sailing being all about world traversal and fun on a boat, it's nice to know where north is, so as not to get lost on the open seas.
Right now, the default behaviour of the minimap is to have up on the minimap be the horizontal camera direction yaw in understandable language, up on the minimap is the direction you're looking at
My wish is to have a "Lock" feature on the minimap, to disable the minimap spin, making it so UP on the minimap can be north, south, east or west, even if you are facing in another direction.
This feature would help with orientation and is a common feature of minimaps within many games, from Breath of the Wild to WoW to FFXIV to Call of Duty.
In terms of implementation on the game client, this functionality could be easiest implemented on the minimap renderer; this is currently using the Camera Yaw to orient, but locking it could just set it to a fixed value north, south, east or west
edit: this has to be implemented on jagex's end as it's too internal for runelite to touch, see Issue #12264