Sheraton Grand in Seattle tried this with me in 2021. At check in they insisted that points were the only option because the restaurant was closed (though, I believe they had room service). I pushed back and asked for the $100 guarantee and they tried to use COVID as an excuse and when I showed them the guarantee they miraculously remembered that a $10 F&B credit was an option which also worked in the Starbucks downstairs. I ended up with two $10 vouchers per day as a result. You can get a decent breakfast at SBX for $10 a day. Was enough to get a snack for lunch too!