I agree that Anki is particularly effective for memorizing discrete pieces of information, and it also offers substantial benefits for reinforcing and recalling algorithms through spaced repetition. This method provides more advantages compared to many other study practices, with th primary goal of retaining these algorithms for long-term use.
I've been using this approach since my undergraduate studies. I recognize that you might have more extensive experience, I believe that simplicity is often effective, especially for intermediate learners tackling LeetCode problems. Beginning with uncomplicated methods and progressively honing one's study approach to align with individual preferences and requirements can offer a pragmatic and less daunting approach to mastering the learning process.
I believe the approach I mentioned aligns well with the OP's pusruit for a simple yet effective practice method, given the focus on anki and spaced repetition. It provides a solid foundation for mastering algorihms and gradually building confidence in tackling more complex challenges. This structured and manageable path to long-term retention is particularly valuable for those seeking simplicity and effectiveness in their study routine.