I can confirm that if you have the club room, you're only offered the breakfast at the club lounge, which I actually think it's quite adequate (food was delicious too) - the rooms was massive in my opinion especially when I went there by myself.
Hotel Review: https://buddhaexplores.com/2017/03/2...-hotel-review/
Club Lounge: https://buddhaexplores.com/2017/03/2...lounge-review/
Rest of Singapore: https://buddhaexplores.com/category/singapore/