I’m not sure what you’ll gain from this question other than political comments. Some will say no because of possible tariffs the EU could apply to sales into the Eu. It tends to forget that the rest of the world exists. Some will say yes given the UK now has the ability to reduce taxes, invest in areas that it couldn’t before and provide competitive opportunities which anyone in the EU couldn’t So it’s really down to…
The biggest macro thing would be free trade treaties with markets like the US and Asia (obviously including China, but elsewhere too) and streamlining regulatory standards to be efficient - not to be all “oh no the big capitalists will exploit everyone,” just better targeted and less bureaucratic; you can glimpse this in the way the UK was first to approve vaccines for covid.
But all that has to compete with maintaining trade access to the EU and that’s a huge barrier if it remains and a huge loss if it doesn’t.
What’s supposed to make startups and tech more competitive there now? Maybe if the Euro collapses in a banking crisis somehow (?!?) but I’m not seeing it.