I usually stay in a 7-day hotel chain on business. I wonder how they disinfect the room indoors and whether small items will be wiped with disinfectant.

The real situation will surprise you, including five-star hotels. I won't really clean and disinfect you. It's great to wipe your body with a clean towel. If you can bring your own toiletries and towels, you can use them yourself, including towels and sheets. Some don't wash at all. My colleague's mother-in-law works in a hotel, so she warned us.