> violation of the free movement of banking services

Isn't the same as freely moving the jurisdiction under which a company exist.

It also mostly applies to cash/legal tender but most wealthy peoples wealth is only in small amounts in cash.

Technically relevant laws are also often not classified as "capital flight" laws per-se, but are very close to it.

E.g. in Germany there is a "Wegzugsteuer" (~moving away from Germany Tax), which only applies to "hidden/unrealized reserves". When you leave Germany (~for good, kinda, it's complicated) the tax treats them as if you sold them, i.e. you have to any tax you would have to pay if you had sold them. "Hidden reserves" include stuff like you owning more then 1% of a company, certain investment founds, crypto currency, etc.. So while it's not a capital flight law as it doesn't affect cash (weather digital or physical) it is very similar to it.

(clarifications: yes in EU crypto currency is not a legal tender, i.e. it's treated more like gold. You still can use them to buy things as you can buy things based on an exchange of goods if all involved parties agree to it. Similar for a lot of the things covered by the law it's possible to sell them for very low taxes under the right circumstances, so if you don't move very spontaneously you have a lot of ways to largely reduce this tax.)