I've been looking forward to this feature, but I must say I'm pretty disappointed that most of the personal automations still require a manual approval before they will execute. For example, I can schedule a particular shortcut to always run at a specific time. When that time comes, however, my phone will display a notification which I must physically tap to execute the automation. If I miss the notification, nothing will happen. The same is true for "When I Arrive..." and "When I Leave..." triggers. Which means, often, I'll get a notification in the car, while I'm driving, which I must tap to execute the automation.
I can see why Apple would want to step cautiously with consumer-based automation, but I was really expecting that all of these new automation triggers would fire without needing any manual approval, or at least that there would be a way to configure them to do so.
I have read that you can use a HomePod, Apple TV, or always-plugged-in iPad as a home hub, and my understanding is the triggers offered here will run in a fully automated fashion. I hope to explore that at some point.
Still, I'm very happy to see the progress in Shortcuts, and I expect it will only get better.