All 'adversarial compatibility' from projects like Nitter, Teddit, Invidious, and youtube-dl go out the window. Any archive site (archive.org, archive.ph, etc.) can be blocked by sites requiring attestation.
And just like the book industry was terrified of piracy and were 'rescued' by Kindle, so too will journalism outlets that can't find a business model flock to Google to save them.
This is going to be rough.