I’ve lived and worked in a few countries (and travelled through a significant chunk of the world in the process). As a general rule, it is not always easy to work abroad and you will need to consider legal and visa restrictions before doing it - it’s not as simple as picking up a laptop and just going places.
In my case, being British opened a few doors for me in this regard, I could work anywhere in the EU and there are special considerations in place for working in some commonwealth countries, but not everyone is this fortunate.