Massive amount of traffic on port 853

My HA installation is using about 7mbit/s constantly, so I went into my pfsense firewall and did some packet captures and investigated a bit deeper with ntopng.

It is sending a massive amount of traffic to 1.1.1.1 on port 853 (DNS over TLS).
I have configured HA to use my own local DNS via DHCP
and System → Network → IP information shows the correct DNS.

How do I find out what plugin or integration that is causing this?

I have already tried to go in and turn off all the add-ons one by one, but non of them seem to cause it. I could of course block the traffic in my firewall, but that wouldn’t really solve the problem.

Is there a command that I can run in terminal to find this out?

I don’t have an answer yet, I just installed HAOS and noticed this as well, this is from a fresh install so it’s something built-in.

Did you ever find an answer?