Then I use ChatGPT to practice German and I am very happy about the experience. AI can't replace real human yet. But I'm already willing to practice with ChatGPT given my current use case and my budget. It's not 10x better, but 20x cheaper. From my experience, AI is not hype.
Imagine integrating a more fine tuned AI and text-to-speech feature to make a better AI teacher. Such an app already exists, I believe. I'm waiting for a German and Japanese one.