Port 53 UDP->TCP Fallback for large DNS queries

[Deefstomp]

Hello,

I wanted to ask what happens if I specify my local resolver only as a UDP resolver in the configuration. Will the Adguard Home Service still fall back to TCP if a DNS request is too large, as per the DNS standard defined?

I already tried to force this by using the virtual circuit feature of nslookup but this forces only TCP communication to Adguard. Not further down to my local unbound resolver (i sniffed that traffic with wireshark and so could confirm this).