I would have seconded that up to the botched implementation of Brexit, now there are many areas of increased risk because (a) certain things are not yet sorted

I would have seconded that up to the botched implementation of Brexit, now there are many areas of increased risk because (a) certain things are not yet sorted out (increased uncertainty) and (b) the process is antagonistic and politicized instead of cooperative, so the issues are unlikely to be resolved anytime soon. The UK is still a relative good countries for starting up, just not as good as it used to be.