Inside Edition investigated
hotel cleaning procedures during COVID. It wasn't good -- bed linens were not changed between guests, remote controls weren't cleaned, handprints not wiped, etc.
The IE team used substances only visible under UV light to mark items in the rooms, then went back the next day under a different name to see if the marks were still there.
Jeez. Even when there's not a pandemic, the danged sheets are supposed to be changed between guests! The towels were new because, yeah. Hanging up new towels is a lot less work than changing the bed.
Those travelers who take their own sheets and cleaning supplies or who skip hotels altogether, you may feel validated.