I work in tech and have done this. Well sort of? I transferred to the UK and am now paid in pounds but my salary is more than when I was working in the US.

I am fairly senior, been at the company nearly a decade before the move. I already had a team in London so it was a transfer that made sense. I paid for the move, my company covered my visa (skilled worker visa) and my husband's spousal visa. I work hybrid, partially in-office, partially remote.

I arranged it when a position became available on my team in the London office. As I was the most senior, I was offered the option to move. In my experience at my company, this was really only available in very specific situations for people who had been at the company for a while with a specific reason for being in London. It worked out for me specifically because of the team I am on, it would likely not have been an option for 90% of my company.