I kept my motorbike under a cover (at night) on the main road through the village I lived in (in Saddleworth, Oldham/Manchester outskirts) and never had a problem, when I moved to the outskirts of Manchester proper I never saw a bike kept on the streets, now I’ve moved more rural again I see one or two. Mine is now garaged and has been since moving away from the village.
End of the day there is no catch all answer, those saying “it will definitely be nicked” don’t know that any more than those who say “it’ll be fine”.
I rent like the OP and when I was last moving and the prospect of not having a garage came up I looked into building a lean to at the back of the house, seems like a good compromise.