All hotels used for training have laundry. Some are free, some are a few quarters. This is not to be confused with normal hotels with x$ per item. Literally, you can do it yourself for cheap.

Training at endeavor, Currently and historically, has a breakfast and some nights covered on food. Lunch can be snagged at the DL cafeteria (cheap and good) or walking distance to multiple options at a "basic" cost (not expensive, but includes fast food and fast casual). Each of them also offer to make runs to a close grocery store if you want to grab food to make. Easy. I spend a good portion of my month in the training hotels (working in training) and have zero issues regardless of if I want to make food (highly unlikely) or grabbing a bite prior or after a sim session. If an adult beverage is desired, an establishment for that is also walking distance as well (even in Msp winter).

Moral of the story, don't fret the hotel. All will be well. If you have 2 or more days off, you get positive space home. If in training and you get hungry, you have sit down, grab and go, delivery, and cooking options with a room supportive of cooking.