This is far beyond the capabilities of the average user.

I’m sure YouTube/Google has stats on that.

“We’ve investigated ourselves, and found we did nothing wrong”

I would start with home assistants built in automations and scripts before diving into node-red. Node-red is great for complex automations, but if all you’re doing is turning on lights and stuff, just using HA is more than enough, and has a much easier learning curve, IMO.

I’d imagine you’d be hard pressed to find a non-programmer who knows what that is.

More than that, it’s THE communication method for businesses.