@SurgeTeam Please, the NEXTDNS anycast QUIC server failed on iOS but works on Surge MacOS 4.11.2
The endpoint format is:
Primary
quic://Devicename-nextdnsID.anycast.dns1.nextdns.io
Secondary
quic://Devicename-nextdnsID.anycast.dns2.nextdns.io
Both work on Surge MacOS v4.11.2 (2016) but failed on Surge iOS v5.5.3 (Build 2767)