I've heard from a friend in the energy trading space that they're a bit behind, but your question is still a bit too broad.

What in the financial space do you want to hear about? Networks, exchanges, settlement?

I am mainly working on B2B message exchange, e.g. via AS4/EDIFACT/ebix/CIM files and most parties seem to still work with a lot of batch processing. With the ongoing digitization of e.g. metering hardware and faster settlement times in the energy markets (EU-centric) I think this might not cut it anymore in the future.