Ask HN: What is new in algorithms and data structures these days?

Ask HN: What is new in algorithms and data structures these days?
137 comments on Hacker News.
Algs/DS were my first love in CS. Nowadays, all we hear about is AI/ML. There must be hardware/software improvements coming from or necessitating fundamental Algs/DS research. Care to share any of the favorite recent results? Are there big fields still making gains behind all this computing surge?