Neither can be compared cleanly because the languages make such different choices but it's certainly true that C++ has too many garbage "never use this" container types in the standard library. Aria has a brief aside in her "Entirely Too Many Linked Lists" tutorial about why Rust has so few containers in the stdlib (Aria weeded out all the niche container types before Rust 1.0), and it sincerely feels as though 1995 era C++ could have done with an Aria.