Which is the one thing you absolutely cannot do.
I don’t think it is even possible to transfer the „moral right of attribution“ in some countries. So even if the license says so and the person is ok with it, the law takes precedence and Google’s actions are simply illegal.
if there was a comment that said // TODO(username) and google removed all comments, is that violating any license?
Irrespective of the entire NOTICE file question, Apache license text is pretty clear that you MUST retain attribution notices, and I think most courts would consider the line "author = " to be a clear attribution notice.
And then there is the question of them slapping "Copyright Google LLC 2026" on every file. I'm not sure you can do that unless you have actually modified every file, and I think you have to say what exactly you modified and what is covered by the old copyright, and that presumably requires them to say what the old copyright is.
It seems like an open and shut case, and I hear this Google company might have a few $$$ to pay for a settlement ...