Google "Saudi Arabia linear city" and you'll likely see an ad for neom.com [1]. It's worth checking out the site for the impressive but bizarrely fantastical concept art. A BBC article [2] about Neom mentions it will have an autonomous legal system drafted by the investors.

It feels like Saudi Arabia is trying to create the next Hong Kong. Maybe the linear city plan is more of a way to convince investors there's enough real estate room to expand. Or perhaps there's a reason to need an autonomous legal zone stretching from the Red Sea to inner Saudi Arabia.

[1] https://www.neom.com/en-us/regions/theline

[2] https://www.bbc.com/news/blogs-trending-59601335