Its poorer and weaker than it was. widespread inequality, almost fifteen years of domestic austerity, brexit, widespread regulatory capture, privatisations and crumbling infrastructure, huge reductions in state capability (especially military), delusional nostalgic nationalist politics, three decades of getting involved in disastrous and/or illegal wars.
This sounds a lot like the US as well. I lived in London and Surrey County as a kid. Since brexit I ask my friends so you decided to Londonize your whole country as that seems like the only viable path forward. I use a lot of British software, Nuke, Affinity, HDR Light Studio and I can see more of it develop. That said has to be painful to deal the austerity (which is wild as the UK still runs a deficit).
Disclosure: brit