Best way to automatically silence notifications at a specific time frame while already in Focus

This needs to be explained a bit, so here's my problem:

• I use Focus for sleeping. I manually enable it when I go to bed and disable it when I wake up.
• My Focus setting disables notifications for email, calendar, and some messaging apps.
• My security camera app notifications are not disabled, obviously because I want to be alerted if something triggers it in the middle of the night.
• However, there is a certain time in the morning between 7:30AM and 8AM where people walking on the sidewalk triggers alerts that wake me up. And no, I want to avoid not pointing my cameras away from that part of the sidewalk because it helps me catch people letting their pets pee and poop on my yard.
• I usually wake up at 8AM and getting woken up 30 minutes earlier is annoying.
• I am willing to accept the risk of not getting notifications from my cameras on my phone for 30 minutes before I wake up.

What is the most practical way to disable notifications from an app on a scheduled time duration while Focus is already in use? Schedule it in Health? Create a shortcut/automation?