Duolingo has been HORRIBLE lately. It is no longer helpful for quickly and easily learning languages now that they have limited all paid membership levels, other than Max (the expensive one), by removing error feedback. Additionally, after introducing AI, it’s no longer unique questions and stories, and they often repeat one lesson after another. I joined a week before the update and I was learning quickly until the update. Pro tip: ChatGPT (their AI) is free, so you can get around Max by having both open and being willing to type a little.