I do think that is a possibility, which is why I’m only 90% confident. But as I say in post 476, I think the designers were trying to write the DM discretion element out of the stealth rules in 2024, probably to make them easier to resolve by computers (be they future video games or hypothetical AI DMs). Instead of needing the DM to decide that a creature is distracted enough not to notice you when you sneak out of cover, these new rules seem to assume that a creature is distracted enough as long as its passive Perception is not higher than your stealth check, and does not use the Search action and roll higher on its Perception check.