That’s not the case everywhere. In ‘Europe’ (I don’t know what set of countries this applies to), workers must be able to get sufficient natural daylight.

https://www.kingspan.com/ie/en/knowledge-articles/what-is-en...:

“To comply with the minimum recommendations for indoor spaces lit with windows or curtain walling, over 50% of the space must achieve 300 lux for more than half the daylight hours in the year. In addition, to prevent particularly gloomy areas being created within a room, a backstop value of 100 lux has to be met across the entire space for the same period.

If rooflights are used to provide daylight into the space, then the requirements are more demanding with a value of 300 lux required for the whole of the relevant space for at least half of the daylight hours.”