It's definitely worth understanding what Anki is. It goes beyond flash cards and there's a body of research showing its efficacy: https://alchemist.camp/learning-machine/spaced-repetition-sy...

That said, I still have basically the same opinions you do when it comes to when it comes to using it for most programming skills. Others have a different perspective, though: https://www.semicolonandsons.com/episode/how-to-learn-to-cod...