British people are becoming German due to Brexit
verdict.co.uk
verdict.co.uk
It is only a minuscule part of the British people and we do not know how many German got British citizenship in the same timeframe.
And IMO if it is a free choice (not the one of their employer) it is a bit strange they would choose Germany, they have a lot more in common in culture and history with the Netherlands. There is even a close relationship between Old Frisian and Old English.