I’m on a Mac, and some of the default tooling feels dated: GNU coreutils and friends are often stuck around mid-2000s versions. Rather than replace or fight against the system tools, I supplement them with a few extras. Honestly, most are marginal upgrades over what macOS ships with, except for fzf, which is a huge productivity boost. Fuzzy-finding through my shell history or using interactive autocompletion makes a noticeable difference day to day.