Leaving small HF for FO?

I have 4YOE in a small equity L/S HF, mostly PM money, no career upside for me. I tried to move elsewhere for a while but I’m based in Europe and HF space is dry here. Excluding market neutral setups (which are very different from my current investment philosophy), opportunities are rare and barely manage to get interviews. Not being in London (main HF spot) makes it more difficult given the small network I developed.

I got this offer from a family office managing multi $bn in assets - public equity makes >500m. No internal fund, investments are rather long termish and managed directly through private accounts.

Am I being too delusional in still hoping to get to a decently performing HF in Europe given there are just a few and the just keep on shrinking? Should I reconsider my goal to became a HF manager? Is the family office something that someone tried and would kill any upside I could have in the industry?