We have a large laurel hedge - prunings go through the
compost first before being applied to soil.
Recently we cut and then shredded a whole load of prunings. A small amount left by the shredder site killed the grass off within 3 days. So, I would use it neat on areas where you want to clear things quickly, but compost it before putting it around your precious plants.
Also, the sweet almond smell you get from the leaves is, I believe, a weak cyanide gas. Cyanide evaporates over a couple of days. I suspect that laurel will be less toxic once it has been sitting around for a week or so.