All my suggestions where made in the event of the U1 team wanting to use notifications. The tooltip idea is really a god one, forgot about it, as we no longer have tooltips.
Bubbles should also have an informative meaning, I think. Example: I've a shared folder with user 2. User 2 puts a new file in the folder. I expect a notification like "User 2 added File.example", and not just an icon spinning. That would be confusing, as I hadn't done nothing that would require a sync. It's an external event that which I should be notified about. But of course, there could be some actions related to that bubble, like "Open file", "Open Folder".
All my suggestions where made in the event of the U1 team wanting to use notifications. The tooltip idea is really a god one, forgot about it, as we no longer have tooltips.
Bubbles should also have an informative meaning, I think. Example: I've a shared folder with user 2. User 2 puts a new file in the folder. I expect a notification like "User 2 added File.example", and not just an icon spinning. That would be confusing, as I hadn't done nothing that would require a sync. It's an external event that which I should be notified about. But of course, there could be some actions related to that bubble, like "Open file", "Open Folder".