Just to add some official context on this, Chromium's BSD license explicitly requires attribution in derivative works. The notice clause says: "Include a readable copy of the attribution notices contained within such NOTICE file…within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear." It's not just good practice—this is a legal requirement. Surprised Atlas skipped this.
https://chromium.googlesource.com/chromiumos/config/+/refs/h...