Pre-SPG merger, I used to do laundry on a regular basis when I traveled, and IME, all limited service brands (CY, FI, RI, TPS, SHS) in North America I stayed at always had self-service laundry. Full service hotels were hit or miss, with a lot more misses than hits. Also, limited service hotels outside NA usually didn't have self-service laundry. But I do fondly remember the Cedar Rapids Marriott having 50 cents washing and 50 cents drying, which was 25% of the price the units in my then-apartment building charged. Finally in 2018, I moved into an apartment that had an in-unit washer and dryer, so I don't know about the pre-merger SPG brands.