A project Manager friend working for a German tech firm has just obtained his German citizenship - he has several years residence.
He applied because his employer expressed concern that he might no longer be able to supervise those parts of his projects in other E27 countries,
that he might have problems with health insurance
and he was worried about his future career prospects as a non-EU citizen
Having theoretical rights doesn't help if employers etc are dubious
Only 2 Brits I know in Germany have permanent residence
... because Germany hasn't given such status to EU citizens since about 2000
... and even they will have to reapply, since they were told it may no longer be valid.
In Germany, we all have to wait until Brexit has actually happened, before we can apply for permanent residence
The govt has said we can all stay, but there is great uncertainty about the conditions
If the UK does not continue the S1 scheme for repaying healthcare for UK state pensioners,
then many British pensioners without private insurance will probably have to return to the UK
I'm very lucky to be self-supporting and have worldwide private insurance;
however some elder expats here are very worried, because they switched to the S1 scheme