Maybe someone can write an OO language where arrays of structs are automatically stored as structs of arrays.
mild /s
There's a package to do this in Julia: https://juliaarrays.github.io/StructArrays.jl/stable/
something like this https://crates.io/crates/columnar ?
Odin has some helpers, was one of the more interesting features I found, but never tried. Not sure if you want to consider Odin OO, but well https://odin-lang.org/docs/overview/#soa-struct-arrays