Personally, I use this blueprint to handle it for my multiple HA instances. I just set a schedule to do auto-updates between 03:00 and 05:00 Monday - Friday and then have my instances send notifications when they are shutting down and after they’ve finished starting up. That way when I get up in the morning I know that an update requiring a restart happened and I can verify things came back sanely. 100% SAF on this because my spouse never encounters the system not working when they’re asleep 