Mario Because we haven't enabled those templates in the build yet. I've opened an issue here: EsotericSoftware/spine-runtimes2442
chocoti (Out of curiosity, is there an estimated ETA/any updates for this? I understand that you're all very busy, thank you for the hard work!)
Mario No ETA I'm afraid. We are currently wrapping up the 4.2 release. After that I'll have a look. Remi got in touch with me about turning spine-godot into a GDExtension with C# support. Hopefully C# support on iOS and Android falls out of that work.