Wiktionary
hot desking
n. (context idiomatic English) The working practice of sharing desks or workstations between workers, as a means of saving space and resources.
Wikipedia
Hot desking
Hot desking (sometimes called "non-reservation-based hoteling") is an office organization system which involves multiple workers using a single physical work station or surface during different time periods. The "desk" in the name refers to an office desk being shared by multiple office workers on different shifts as opposed to each staff member having their own personal desk. A primary motivation for hot desking is cost reduction through space savings - up to 30% in some cases. Hot desking is especially valuable in cities where real estate prices are high.