Frames are why this series has a following. Land 6 or more Hard Hats and you get 6 free spins, and every Hard Hat plants a Frame on its exact position. There are no cash values stuck to the reels the way most hold-and-spin games do it. Instead, each Frame is a house under construction, and it upgrades through three materials: Straw, then Stick, then Brick. Frames never reset mid-feature; they persist until the last spin ends.
Then the wolf shows up. He huffs and puffs at the whole grid, and every house pays based on what it's made of. Straw houses pay small, typically fractions of your bet. Stick houses pay mid-range prizes and can carry the smaller jackpots. Brick houses are the target: they pay the large amounts, up to hundreds of times your bet, and can hold multiple jackpots at once. Light & Wonder hasn't published the exact prize bands, so treat those as magnitudes rather than a precise table.
The practical takeaway is simple. A Frames feature that triggers late and ends with a grid of straw pays a polite consolation. One that keeps landing Hard Hats and upgrades a wall of brick is where the screenshots come from.