This morning my kid asked the voice assistant to "Turn off the computers in this house".
I heard it, thought well that's a strange request but seems harmless because how is home assistant gonna turn off computers.
Me a little while later, "why is shit broken? What's happening!"
Turns out dumb me had adguard exposed to the voice assistant, it switched off all the adguard settings including the DNS rewriting that is the cornerstone of many of my self-hosted services.
I've since revoked that access.
I think that setting has been there as long as I've had a voice assistant (since I got my HA Voice Preview in January). I knew it existed but I let it expose them. I probably shouldn't, because I always have to review it after adding anything new since it normally doesn't get what I wanted exposed/not exposed.