Yeah. Same thing. Chromium edge can't open site by it's name, but open it by it's address
Sounds like something isn't set up right for Chromium-based browsers like Opera when it comes to DNS resolving to ipv6. Since it's working for leocg, I'm assuming there's something not set up right on your computer.
What OS are you using? What router are you using? Are you using any custom DNS servers (or maybe you need to try to)?