Folk who hope to spend more than 3 months continuously in Europe after the end of the Brexit transition period, and who are considering becoming resident in an EU country as a way of doing it, might find the Q&A session run by the British Embassy in Madrid of interest. It is mainly aimed at pensioners who spend the winter in Spain, but also relevant to sun rock addicts, second home owners, vanlifers etc. Access via the facebook page, 3rd item down, I think.
https://www.facebook.com/BritsInSpain/
If you can get an Irish passport, no worries for you, but I hate you
