Just as prior wishlist chart-toppers The Day Before (lol), Manor Lords, and (briefly) Stray gave way to Hollow Knight: Silksong's long reign, so too has Team Cherry's platformer passed the torch to a new contender. Subnautica 2 is now the most wishlisted game on Steam, followed by Valve's MOBA-shooter Deadlock. Slots three through five are taken up by Battlefield 6, Borderlands 4, and Light No Fire.
Steam's publicly available data isn't the end-all, be-all of the hobby—not the least because it doesn't account for other storefronts or console players—but it is useful for divining trends and getting a snapshot of the current gaming scene.
