Isn't that what "moving to another city" is? If you can move, it means you can have your income there somehow, either with a local office or working remotely.
In France, the government has tried to spread companies a bit, which didn't exactly work, not even at the Paris region level. Everyone and their dog wants to be in Paris proper or La Defense (the local business district, which, while technically not inside Paris, is right outside).
Now that more and more companies are accepting that people are full-time remote, I've actually seen people up and leave Paris for smaller cities.
Of course, not all companies are open to the full-remote arrangement. I'd even say most aren't judging by the absurd levels of traffic around Paris.