i dont know about caching ,but i know that if the view is static that means it dose not change and it's public to all you shoude call it from Route; but if the view is dynamic and using different data ,meybe it also checking or dose some processes before showing so the calling use controller is more usefull .
about cache i think if the method view() cache the view it will cache it automatically by call it from Route or Controller ,coz it is the same method.
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