You can find it here: https://web.archive.org/web/20230320232059/https://communityforums.atmeta.com/t5/Get-Help/Quest-Pro-tracking-lost-orientation-randomly-flipping-freezing/td-p/1026990
It's a copy/paste of a reddit thread from here: https://www.reddit.com/r/oculus/comments/10tzrjz/quest_pro_tracking_lost_orientation_flip_freeze/
Most reddit copy/pastes are done by bots for spamming, they pick random posts on reddit to look legitimate, post them here, then edit in spam links after a few days. They usually get deleted when found.
But this one looks like the real author posted it in two places (usually the username doesn't match).
Google is out of date, it hasn't re scanned the forum since the update, so it still thinks old threads exist on old boards that aren't there anymore.