Correction: The commission is charged with looking at ways to reform the Supreme Court, of which packing is one method. Given the past history we've had with FDR trying to pack the Court, it's the least likely reform method to be proposed. There are many different reform alternatives that the commission could study and I believe such study is useful, even if Biden doesn't take steps to actually change the Court. Take a look yourself: https://www.scotusreform.com/see-the-options