I totally love the idea of being able to Minimize and Pin panels. One of the main issues in Fibery in my experience is loss of context. See also this related other topic about multi-directional panel navigation.
Likewise, pinned and minimized panels will help for:
Context Preservation: When working on complex projects, keeping multiple panels open can help in maintaining the context and reducing the cognitive load of having to remember details from other parts of the project.
Quick Access: Pinned panels can serve as quick shortcuts to frequently used functionalities, reducing the time spent in navigation.
Multi-Tasking : Being able to minimize or pin panels would allow users to switch between tasks more efficiently without losing context.
Other idea
I could also imagine that ‘Panel collections’ would be useful, since I often need to work on a specific set of entities for a day or some days, which would allow me to quickly boot up these panels in the right order.