Interested in this as well. Is it any different if you've got a remote job for a US company (I've got confirmation they'd let me move over to contractor status).
It’s usually somewhat worse. However depending on how close you are with that company, you might be able to be a representative of an overseas business [1], or they might be able to sponsor you using directly with a local entity or a hiring service (though idk which ones might offer things like this).
[1] https://www.gov.uk/representative-overseas-business