There is also this: Animation Sharing Plugin in Unreal Engine | Unreal Engine 5.2 Documentation
“When creating animation systems for large crowds of characters, you can use the Animation Sharing Plugin to significantly reduce your projects performance cost. Rather than performing individual evaluations of an Animation Blueprint for each character in your level, you can share animations from a single evaluation across many characters, resulting in a system where the difference between 100 characters and 1000 characters results in a minimum increase in performance cost.”