This is the best tl;dr I could make, original reduced by 75%. (I’m a bot)
Using a combination of official statistics across the EU and in-depth interviews with people living in Germany, the study found huge changes in migration patterns of UK citizens since the 2016 referendum, which contrast with largely stable ones among nationals from the 27 EU states remaining in the bloc.
The report, a collaboration between the Oxford in BerlinResearch Partnership – a project made up of Oxford university and four Berlin institutions – and the WZB Berlin Social Science Center, also found a “Seismic shift” in the number of UK citizens already living abroad who had decided to go a step further by obtaining EU member state passports since 2016, showing how Britain’s vote to leave the EU pushed many individuals into long-term decisions.
Britons living in other EU countries who decided to obtain EU member state passports as well as their UK ones had increased by more than 500% overall, and by 2,000% in Germany.