Experiences of Europeans moving to America for tech jobs?

American tech jobs are paid alot better than the European equivalent (data scientists, product owners, AI specialists, etc). I'm curious if there are any Europeans on here who moved to America for this reason. Do you feel financially better off? What were the pros and cons? Do you think it's feasible to move to America for 3-5 years to make and save a lot of money, and then move back home flush with cash?