It's the same ballpark
Edit: I quickly realised, this might only because of Rust's—in my opinion—superior type system and tooling, so maybe it just requires less waiting for compilations than when working C++.
Edit 2: I've never actually measured Rust compilation times, but even for large-ish graphical codebases (wezterm, alacritty, bevy games) I've compiled from scratch, it felt noticeably faster even then.
AAA games need less resources than those tree walkers