Use case or problem
Quickly link between notes in open vaults.
Proposed solution
For all open vaults, enable cross-vault use of [[internal links]]. The internal links from one vault to another would be active and clickable as long as the “destination” vault is open. If that vault is closed, then the link would not be clickable. If the destination vault is closed perhaps Obsidian could display a tooltip message such as Vault <valult> is not available, or something like that.
I realize having a feature that would “break” if the right combination of vaults is not open is suboptimal, but the current work-arounds of having to set up obsidian:// URLs is also sub-optimal. The feature I’m suggesting utilizes Obsidian’s rapid linking feature, and I assume Obsidian can be aware of the open vaults in the environment. Correct me if I’m wrong.
Current workaround (optional)
Use obsidian:// file path or Advanced URI (plugin) links.
Related feature requests (optional)
I didn’t find any, but I wouldn’t be surprised if others more knowledgable or adept than me have debated this feature at length.