Why does not anyone use laptops for studios?
Which studios? Music?
Of course, there are also laptops used.
Why should you? In studios, the devices are stationary. What would be the meaning of NEN. To use laptops?
But of course it depends on the studio.
Also, you may want to use pcie cards, multiple screens and etc.
Game studios, music studios, animation studios, gyms and TV studios all have pretty different requirements.
Studios are (almost) always in the same location and a laptop has significantly less power than a self-made 12,000 euro workstation brand.