For those looking for videos of the GTA 6 leaks they are available on the Internet Archive
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GTA 6 LEAKS (ALL CLIPS) 1080P : Rockstar : Free Download, Borrow, and Streaming : Internet Archive
https://archive.org/details/sbu2V2fgXC
This is the full hour of GTA 6 leaks that were taken down from YouTube. Other reuploads were in poor quality, so I've decided to archive this in full HD...
Here is a Games Radar article for those unfamiliar with the leaks. The Twitter and YouTube links that originally contained the leaks were taken down. Thankfully someone reuploaded them to the Internet Archive.