The following is the download address of the latest Google official version of the adb toolkit:
ADB和Fastboot for Windows
https://dl.google.com/android/repository/platform-tools-latest-windows.zip
ADB和Fastboot for Mac
https://dl.google.com/android/repository/platform-tools-latest-darwin.zip
ADB and Fastboot for Linux
https://dl.google.com/android/repository/platform-tools-latest-linux.zip
Since these are direct Google links, users can ensure that the download is not only official, but will always be able to obtain the latest versions of ADB and Fastboot.