Valve's Steam Deck rating system is generally quite correct, but there are clearly some times when it isn't. Thankfully, Valve do go back over various games to re-test them and Marvel's Spider-Man 2 has been hit with a downgraded rating.
Read the full article here: https://www.gamingonlinux.com/2025/03/marvels-spider-man-2-has-lost-its-steam-deck-verified-rating/