It is important to distinguish the generic concept of build tools from the specific SDK component named "Android SDK Build-Tools."
Managing Build Tool versions is a common source of friction for developers. Historically, developers managed versions manually in build.gradle files. In modern Android Studio projects (Arctic Fox and later), this has evolved:
In Android Studio: Tools → SDK Manager → SDK Tools → check "Android SDK Build-Tools".
This ensures that every developer on your team uses the same toolchain for consistent builds. SDK Build Tools release notes | Android Studio