You have to also ask yourself way do you want to update browsers, I’d think most would say to apply security fixes. If that’s the case then you’d want them applied ASAP. If we take Google as an example it’s been updated 4x this month alone, therefore the quickest way to get those browsers updated on persistent devices is letting them update themselves. Now if we take NP, why wouldn’t you let them auto update, I think it’s because you’d be concerned about the performance hit upon first boot/login if it wasn’t updated in the master image. I’m not sure how often everyone updates their master image, I’m guessing not 4x this month though. So the question about how you update the browsers, if security is your concern, is what ever is the quickest - updating master image, auto updates, you pick your poison. Now if security isn’t the concern, rather how I do this in a controlled predictable fashion - using evergreen is key, along with updating master images for NP.