Need to go through SteelSeries GG app, direct link if installed (browser url bar or windows run box): ssgg://gg/giveaways
Ignore instructions in the app, it's not a Steam key but Epic key, redeem here: https://store.epicgames.com/en-US/redeem/fall-guys or here: https://www.epicgames.com/account/code-redemption
In-game look of the name plate
Also an in-game key for Goose Goose Duck is available (given before), not Steam key like instructions. Can be redeemed here: https://gaggle.fun/dashboard/redeem-code
https://steelseries.com/game-on