Google uses libraries licensed under GPLv2 in Android (I’m not sure which specific part of Android the author is talking about), and so is required to make the full source code available for anyone to view. They previously used to publish release tag tarballs, but now require you to fill out a Google form and then (weeks later) will share the source with you on Google Drive.

It means Google is making it harder than it needs to be to obtain source code. It's a dick move, and the only plausible interpretations are that it will get harder still, and it's intended to slow down projects like GrapheneOS. Even if it can be lawyered to be in the letter of the open source licenses that apply, it's not in the spirit of those licenses.

Google apparently wants everybody to know how much they hate abiding by the terms of open source licenses.