Regardless of everything else I'm afraid that job-market-wise OOP is dominating which makes it difficult (at least for me) to do serious knowledge investment in FP.

OOP related I've seen it used nicely -usually when kept as simple as possible and mostly as a message passing mechanism. But more often than not it ends up as a big ball of mud or an overengineered mess of design patterns and opinionated (to the point of cargo-culting) principles (SOLID etc). Specially from younger devs.