@eirk
yes, exactly, its kinda like a peek outside the browser, Peeks also offers to go full browser by clicking the "expand" button.
So its not a matter of seperate usecases. its a matter of what the little arc window offers that a peek doesnt in the mentioned usecases?
from my testing and in the mentioned usecases i fail to see why anything other then a peek (webapp like window without toolbar) would be needed? hence why im asking