Or rather, if you move countries, change your name to one that fits. It's pretty normal and really not that hard.
Sort of but not really. The post-2012 residence cards do not display a registered alias anywhere, and since those cards are what banks are required to KYC you on, a lot of banks won't allow you to use a registered alias which in turn means it's hard to use it for anything else (credit cards, phone, pension...). It's very non-joined-up government.