@SurgeTeam This bug is present in Surge Mac 4.11.2. Infact for SurgeMac 4.11.2, using "quic://nextdnsid.dns.nextdns.io" without name is more stable than appending a name such as "quic://iphone-nextdnsid.dns.nextdns.io". Please fix for surge Mac4.
Also, there's a spacing compatibility bug because using "quic://surge--iphone-nextdnsid.dns.nextdns.io" does not work for old and newer Surge iOS and MacOS due to using the syntax "--" for spacing as documented by NextDNS.
Thanks