These tax threads are useless.
For at least 75-85% there will never be a need to move to a lower taxregion. It only makes sense if you make money, enough money...
From the remaining , the majority will never move too (too difficult with family, too far away...), or too lazy to make the step.
I meet in life too much people that told: I wish to move, or I wish to find another job, or I should divorce... But it stays a wish, they never do it, just repeat tgheir wishes over and over again for many years.
Same story with low tax regions.