Leap 15.4: Where can I find Qt 6.2 LTS?

I'm currently porting a Qt project to Qt 6, specifically the Qt 6.2 LTS. I'm on Leap 15.3 and am using the builds from https://build.opensuse.org/project/show/KDE:Qt:6.2. But I can see that even for 15.3 they are mostly completely disabled and for 15.4 they are not present at all, so this is probably not the right location. Can somebody give me a pointer where Qt 6.2 LTS is built, especially for 15.4?