The new focus feature is great and something I've been looking forward to for ages — so much so that I built a hacky version of it myself a while ago. Essentially, I used to put on do not disturb for deep work but forget to turn it off later, missing out on important notifications. I really enjoy turning things off for an hour or two and then get back to being social. Having the feature baked into the OS instead of my hacky workaround app is great.