I’m using Google Home (Google Assistant) integration since it has access the Eufy HomeBase Security Modes, including the custom modes. And now that Google has added the ability to use scripted Automations that include conditions, that makes it totally automated for me without having to use voice commands. But it’s only about 90% reliable using two actions, and it doesn’t work at all if any Eufy device is offline.
https://community.eufy.com/t/set-eufy-security-modes-using-google-homes-scripting-feature/4455187